Home / 3,187.10-4,781.67-1,337.72

Finding the Fourth Proportional to 3,187.10, 4,781.67 and 1,337.72

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Solution

The fourth proportional to 3,187.10, 4,781.67 and 1,337.72 is: 2,007.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.10 : 4,781.67 = 1,337.72 : x
  2. Step 2: Convert to fraction form
    3,187.10/4,781.67 = 1,337.72/x
  3. Step 3: Cross multiply
    3,187.10x = 4,781.67 × 1,337.72
  4. Step 4: Simplify right side
    3,187.10x = 6,396,535.59
  5. Step 5: Solve for x
    x = 6,396,535.59/3,187.10
  6. Step 6: Final answer
    x = 2,007.01

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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.