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Finding the Fourth Proportional to 7,471.57, 11,204.11 and 2,539.88

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Solution

The fourth proportional to 7,471.57, 11,204.11 and 2,539.88 is: 3,808.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,471.57 : 11,204.11 = 2,539.88 : x
  2. Step 2: Convert to fraction form
    7,471.57/11,204.11 = 2,539.88/x
  3. Step 3: Cross multiply
    7,471.57x = 11,204.11 × 2,539.88
  4. Step 4: Simplify right side
    7,471.57x = 28,457,122.92
  5. Step 5: Solve for x
    x = 28,457,122.92/7,471.57
  6. Step 6: Final answer
    x = 3,808.72

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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.