Home / 5,531.20-7,634.10-3,174.88

Finding the Fourth Proportional to 5,531.20, 7,634.10 and 3,174.88

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Solution

The fourth proportional to 5,531.20, 7,634.10 and 3,174.88 is: 4,381.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,531.20 : 7,634.10 = 3,174.88 : x
  2. Step 2: Convert to fraction form
    5,531.20/7,634.10 = 3,174.88/x
  3. Step 3: Cross multiply
    5,531.20x = 7,634.10 × 3,174.88
  4. Step 4: Simplify right side
    5,531.20x = 24,237,351.41
  5. Step 5: Solve for x
    x = 24,237,351.41/5,531.20
  6. Step 6: Final answer
    x = 4,381.93

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1.5x scale

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.