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Finding the Fourth Proportional to 6,448.86, 8,899.11 and 3,654.30

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Solution

The fourth proportional to 6,448.86, 8,899.11 and 3,654.30 is: 5,042.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,448.86 : 8,899.11 = 3,654.30 : x
  2. Step 2: Convert to fraction form
    6,448.86/8,899.11 = 3,654.30/x
  3. Step 3: Cross multiply
    6,448.86x = 8,899.11 × 3,654.30
  4. Step 4: Simplify right side
    6,448.86x = 32,520,017.67
  5. Step 5: Solve for x
    x = 32,520,017.67/6,448.86
  6. Step 6: Final answer
    x = 5,042.75

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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.