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Finding the Fourth Proportional to 6,651.77, 9,179.43 and 4,000.71

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Solution

The fourth proportional to 6,651.77, 9,179.43 and 4,000.71 is: 5,520.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,651.77 : 9,179.43 = 4,000.71 : x
  2. Step 2: Convert to fraction form
    6,651.77/9,179.43 = 4,000.71/x
  3. Step 3: Cross multiply
    6,651.77x = 9,179.43 × 4,000.71
  4. Step 4: Simplify right side
    6,651.77x = 36,724,237.40
  5. Step 5: Solve for x
    x = 36,724,237.40/6,651.77
  6. Step 6: Final answer
    x = 5,520.98

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Double scale
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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.