Home / 2,208.19-3,046.04-1,378.75

Finding the Fourth Proportional to 2,208.19, 3,046.04 and 1,378.75

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Solution

The fourth proportional to 2,208.19, 3,046.04 and 1,378.75 is: 1,901.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208.19 : 3,046.04 = 1,378.75 : x
  2. Step 2: Convert to fraction form
    2,208.19/3,046.04 = 1,378.75/x
  3. Step 3: Cross multiply
    2,208.19x = 3,046.04 × 1,378.75
  4. Step 4: Simplify right side
    2,208.19x = 4,199,720.76
  5. Step 5: Solve for x
    x = 4,199,720.76/2,208.19
  6. Step 6: Final answer
    x = 1,901.88

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Half scale
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Double scale
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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.