Home / 1,654.30-2,279.28-1,372.96

Finding the Fourth Proportional to 1,654.30, 2,279.28 and 1,372.96

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Solution

The fourth proportional to 1,654.30, 2,279.28 and 1,372.96 is: 1,891.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,654.30 : 2,279.28 = 1,372.96 : x
  2. Step 2: Convert to fraction form
    1,654.30/2,279.28 = 1,372.96/x
  3. Step 3: Cross multiply
    1,654.30x = 2,279.28 × 1,372.96
  4. Step 4: Simplify right side
    1,654.30x = 3,129,360.27
  5. Step 5: Solve for x
    x = 3,129,360.27/1,654.30
  6. Step 6: Final answer
    x = 1,891.65

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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.