Home / 3,455.19-4,764.56-2,274.75

Finding the Fourth Proportional to 3,455.19, 4,764.56 and 2,274.75

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Solution

The fourth proportional to 3,455.19, 4,764.56 and 2,274.75 is: 3,136.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.19 : 4,764.56 = 2,274.75 : x
  2. Step 2: Convert to fraction form
    3,455.19/4,764.56 = 2,274.75/x
  3. Step 3: Cross multiply
    3,455.19x = 4,764.56 × 2,274.75
  4. Step 4: Simplify right side
    3,455.19x = 10,838,171.49
  5. Step 5: Solve for x
    x = 10,838,171.49/3,455.19
  6. Step 6: Final answer
    x = 3,136.78

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Find fourth proportional to 1,727.60, 2,382.28 and 1,137.38
Half scale
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Double scale
Find fourth proportional to 3,456.19, 4,765.93 and 2,275.75
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.