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Finding the Fourth Proportional to 6,651.66, 9,180.16 and 4,000.52

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Solution

The fourth proportional to 6,651.66, 9,180.16 and 4,000.52 is: 5,521.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,651.66 : 9,180.16 = 4,000.52 : x
  2. Step 2: Convert to fraction form
    6,651.66/9,180.16 = 4,000.52/x
  3. Step 3: Cross multiply
    6,651.66x = 9,180.16 × 4,000.52
  4. Step 4: Simplify right side
    6,651.66x = 36,725,413.68
  5. Step 5: Solve for x
    x = 36,725,413.68/6,651.66
  6. Step 6: Final answer
    x = 5,521.24

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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.