Home / 1,590.68-2,387.50-1,127.14

Finding the Fourth Proportional to 1,590.68, 2,387.50 and 1,127.14

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Solution

The fourth proportional to 1,590.68, 2,387.50 and 1,127.14 is: 1,691.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590.68 : 2,387.50 = 1,127.14 : x
  2. Step 2: Convert to fraction form
    1,590.68/2,387.50 = 1,127.14/x
  3. Step 3: Cross multiply
    1,590.68x = 2,387.50 × 1,127.14
  4. Step 4: Simplify right side
    1,590.68x = 2,691,046.75
  5. Step 5: Solve for x
    x = 2,691,046.75/1,590.68
  6. Step 6: Final answer
    x = 1,691.76

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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.