Home / 1,587.03-2,380.16-1,123.46

Finding the Fourth Proportional to 1,587.03, 2,380.16 and 1,123.46

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Solution

The fourth proportional to 1,587.03, 2,380.16 and 1,123.46 is: 1,684.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587.03 : 2,380.16 = 1,123.46 : x
  2. Step 2: Convert to fraction form
    1,587.03/2,380.16 = 1,123.46/x
  3. Step 3: Cross multiply
    1,587.03x = 2,380.16 × 1,123.46
  4. Step 4: Simplify right side
    1,587.03x = 2,673,997.04
  5. Step 5: Solve for x
    x = 2,673,997.04/1,587.03
  6. Step 6: Final answer
    x = 1,684.91

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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.