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Finding the Fourth Proportional to 6,479.38, 8,941.35 and 3,646.91

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Solution

The fourth proportional to 6,479.38, 8,941.35 and 3,646.91 is: 5,032.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,479.38 : 8,941.35 = 3,646.91 : x
  2. Step 2: Convert to fraction form
    6,479.38/8,941.35 = 3,646.91/x
  3. Step 3: Cross multiply
    6,479.38x = 8,941.35 × 3,646.91
  4. Step 4: Simplify right side
    6,479.38x = 32,608,298.73
  5. Step 5: Solve for x
    x = 32,608,298.73/6,479.38
  6. Step 6: Final answer
    x = 5,032.63

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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.