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Finding the Fourth Proportional to 6,630.85, 9,944.24 and 2,187.69

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Solution

The fourth proportional to 6,630.85, 9,944.24 and 2,187.69 is: 3,280.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,630.85 : 9,944.24 = 2,187.69 : x
  2. Step 2: Convert to fraction form
    6,630.85/9,944.24 = 2,187.69/x
  3. Step 3: Cross multiply
    6,630.85x = 9,944.24 × 2,187.69
  4. Step 4: Simplify right side
    6,630.85x = 21,754,933.80
  5. Step 5: Solve for x
    x = 21,754,933.80/6,630.85
  6. Step 6: Final answer
    x = 3,280.87

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1.5x scale

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.