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Finding the Fourth Proportional to 5,337.90, 8,008.05 and 1,640.30

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Solution

The fourth proportional to 5,337.90, 8,008.05 and 1,640.30 is: 2,460.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,337.90 : 8,008.05 = 1,640.30 : x
  2. Step 2: Convert to fraction form
    5,337.90/8,008.05 = 1,640.30/x
  3. Step 3: Cross multiply
    5,337.90x = 8,008.05 × 1,640.30
  4. Step 4: Simplify right side
    5,337.90x = 13,135,604.42
  5. Step 5: Solve for x
    x = 13,135,604.42/5,337.90
  6. Step 6: Final answer
    x = 2,460.82

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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.