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Finding the Fourth Proportional to 6,545.64, 9,821.16 and 2,649.04

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Solution

The fourth proportional to 6,545.64, 9,821.16 and 2,649.04 is: 3,974.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,545.64 : 9,821.16 = 2,649.04 : x
  2. Step 2: Convert to fraction form
    6,545.64/9,821.16 = 2,649.04/x
  3. Step 3: Cross multiply
    6,545.64x = 9,821.16 × 2,649.04
  4. Step 4: Simplify right side
    6,545.64x = 26,016,645.69
  5. Step 5: Solve for x
    x = 26,016,645.69/6,545.64
  6. Step 6: Final answer
    x = 3,974.65

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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.