Home / 4,129.76-5,698.56-2,451.20

Finding the Fourth Proportional to 4,129.76, 5,698.56 and 2,451.20

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Solution

The fourth proportional to 4,129.76, 5,698.56 and 2,451.20 is: 3,382.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,129.76 : 5,698.56 = 2,451.20 : x
  2. Step 2: Convert to fraction form
    4,129.76/5,698.56 = 2,451.20/x
  3. Step 3: Cross multiply
    4,129.76x = 5,698.56 × 2,451.20
  4. Step 4: Simplify right side
    4,129.76x = 13,968,310.27
  5. Step 5: Solve for x
    x = 13,968,310.27/4,129.76
  6. Step 6: Final answer
    x = 3,382.35

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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.