Home / 3,538.90-5,306.24-1,347.78

Finding the Fourth Proportional to 3,538.90, 5,306.24 and 1,347.78

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Solution

The fourth proportional to 3,538.90, 5,306.24 and 1,347.78 is: 2,020.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,538.90 : 5,306.24 = 1,347.78 : x
  2. Step 2: Convert to fraction form
    3,538.90/5,306.24 = 1,347.78/x
  3. Step 3: Cross multiply
    3,538.90x = 5,306.24 × 1,347.78
  4. Step 4: Simplify right side
    3,538.90x = 7,151,644.15
  5. Step 5: Solve for x
    x = 7,151,644.15/3,538.90
  6. Step 6: Final answer
    x = 2,020.87

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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.