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Finding the Fourth Proportional to 6,651.62, 9,180.32 and 4,000.49

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Solution

The fourth proportional to 6,651.62, 9,180.32 and 4,000.49 is: 5,521.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,651.62 : 9,180.32 = 4,000.49 : x
  2. Step 2: Convert to fraction form
    6,651.62/9,180.32 = 4,000.49/x
  3. Step 3: Cross multiply
    6,651.62x = 9,180.32 × 4,000.49
  4. Step 4: Simplify right side
    6,651.62x = 36,725,732.46
  5. Step 5: Solve for x
    x = 36,725,732.46/6,651.62
  6. Step 6: Final answer
    x = 5,521.33

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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.