Home / 6,625.50-9,142.83-3,972.42

Finding the Fourth Proportional to 6,625.50, 9,142.83 and 3,972.42

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Solution

The fourth proportional to 6,625.50, 9,142.83 and 3,972.42 is: 5,481.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,625.50 : 9,142.83 = 3,972.42 : x
  2. Step 2: Convert to fraction form
    6,625.50/9,142.83 = 3,972.42/x
  3. Step 3: Cross multiply
    6,625.50x = 9,142.83 × 3,972.42
  4. Step 4: Simplify right side
    6,625.50x = 36,319,160.75
  5. Step 5: Solve for x
    x = 36,319,160.75/6,625.50
  6. Step 6: Final answer
    x = 5,481.72

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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.