Home / 1,874.97-2,587.31-1,089.07

Finding the Fourth Proportional to 1,874.97, 2,587.31 and 1,089.07

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Solution

The fourth proportional to 1,874.97, 2,587.31 and 1,089.07 is: 1,502.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,874.97 : 2,587.31 = 1,089.07 : x
  2. Step 2: Convert to fraction form
    1,874.97/2,587.31 = 1,089.07/x
  3. Step 3: Cross multiply
    1,874.97x = 2,587.31 × 1,089.07
  4. Step 4: Simplify right side
    1,874.97x = 2,817,753.87
  5. Step 5: Solve for x
    x = 2,817,753.87/1,874.97
  6. Step 6: Final answer
    x = 1,502.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.