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Finding the Fourth Proportional to 7,750.50, 10,691.91 and 4,604.46

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Solution

The fourth proportional to 7,750.50, 10,691.91 and 4,604.46 is: 6,351.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,750.50 : 10,691.91 = 4,604.46 : x
  2. Step 2: Convert to fraction form
    7,750.50/10,691.91 = 4,604.46/x
  3. Step 3: Cross multiply
    7,750.50x = 10,691.91 × 4,604.46
  4. Step 4: Simplify right side
    7,750.50x = 49,230,471.92
  5. Step 5: Solve for x
    x = 49,230,471.92/7,750.50
  6. Step 6: Final answer
    x = 6,351.91

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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.