Home / 1,587.14-2,380.72-1,149.74

Finding the Fourth Proportional to 1,587.14, 2,380.72 and 1,149.74

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Solution

The fourth proportional to 1,587.14, 2,380.72 and 1,149.74 is: 1,724.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587.14 : 2,380.72 = 1,149.74 : x
  2. Step 2: Convert to fraction form
    1,587.14/2,380.72 = 1,149.74/x
  3. Step 3: Cross multiply
    1,587.14x = 2,380.72 × 1,149.74
  4. Step 4: Simplify right side
    1,587.14x = 2,737,209.01
  5. Step 5: Solve for x
    x = 2,737,209.01/1,587.14
  6. Step 6: Final answer
    x = 1,724.62

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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.