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Finding the Fourth Proportional to 6,484.32, 8,948.88 and 3,690.24

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Solution

The fourth proportional to 6,484.32, 8,948.88 and 3,690.24 is: 5,092.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,484.32 : 8,948.88 = 3,690.24 : x
  2. Step 2: Convert to fraction form
    6,484.32/8,948.88 = 3,690.24/x
  3. Step 3: Cross multiply
    6,484.32x = 8,948.88 × 3,690.24
  4. Step 4: Simplify right side
    6,484.32x = 33,023,514.93
  5. Step 5: Solve for x
    x = 33,023,514.93/6,484.32
  6. Step 6: Final answer
    x = 5,092.83

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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.