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Finding the Fourth Proportional to 6,641.47, 9,961.61 and 2,479.51

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Solution

The fourth proportional to 6,641.47, 9,961.61 and 2,479.51 is: 3,719.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,641.47 : 9,961.61 = 2,479.51 : x
  2. Step 2: Convert to fraction form
    6,641.47/9,961.61 = 2,479.51/x
  3. Step 3: Cross multiply
    6,641.47x = 9,961.61 × 2,479.51
  4. Step 4: Simplify right side
    6,641.47x = 24,699,934.33
  5. Step 5: Solve for x
    x = 24,699,934.33/6,641.47
  6. Step 6: Final answer
    x = 3,719.04

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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.