Home / 3,761.28-5,642.16-2,458.80

Finding the Fourth Proportional to 3,761.28, 5,642.16 and 2,458.80

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Solution

The fourth proportional to 3,761.28, 5,642.16 and 2,458.80 is: 3,688.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,761.28 : 5,642.16 = 2,458.80 : x
  2. Step 2: Convert to fraction form
    3,761.28/5,642.16 = 2,458.80/x
  3. Step 3: Cross multiply
    3,761.28x = 5,642.16 × 2,458.80
  4. Step 4: Simplify right side
    3,761.28x = 13,872,943.01
  5. Step 5: Solve for x
    x = 13,872,943.01/3,761.28
  6. Step 6: Final answer
    x = 3,688.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.