Home / 3,231.27-4,847.31-1,587.87

Finding the Fourth Proportional to 3,231.27, 4,847.31 and 1,587.87

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Solution

The fourth proportional to 3,231.27, 4,847.31 and 1,587.87 is: 2,382.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.27 : 4,847.31 = 1,587.87 : x
  2. Step 2: Convert to fraction form
    3,231.27/4,847.31 = 1,587.87/x
  3. Step 3: Cross multiply
    3,231.27x = 4,847.31 × 1,587.87
  4. Step 4: Simplify right side
    3,231.27x = 7,696,898.13
  5. Step 5: Solve for x
    x = 7,696,898.13/3,231.27
  6. Step 6: Final answer
    x = 2,382.00

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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.