Home / 3,151.36-4,720.56-2,531.71

Finding the Fourth Proportional to 3,151.36, 4,720.56 and 2,531.71

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Solution

The fourth proportional to 3,151.36, 4,720.56 and 2,531.71 is: 3,792.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.36 : 4,720.56 = 2,531.71 : x
  2. Step 2: Convert to fraction form
    3,151.36/4,720.56 = 2,531.71/x
  3. Step 3: Cross multiply
    3,151.36x = 4,720.56 × 2,531.71
  4. Step 4: Simplify right side
    3,151.36x = 11,951,088.96
  5. Step 5: Solve for x
    x = 11,951,088.96/3,151.36
  6. Step 6: Final answer
    x = 3,792.36

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1.5x scale

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.