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Finding the Fourth Proportional to 5,489.56, 7,576.02 and 3,132.40

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Solution

The fourth proportional to 5,489.56, 7,576.02 and 3,132.40 is: 4,322.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,489.56 : 7,576.02 = 3,132.40 : x
  2. Step 2: Convert to fraction form
    5,489.56/7,576.02 = 3,132.40/x
  3. Step 3: Cross multiply
    5,489.56x = 7,576.02 × 3,132.40
  4. Step 4: Simplify right side
    5,489.56x = 23,731,125.05
  5. Step 5: Solve for x
    x = 23,731,125.05/5,489.56
  6. Step 6: Final answer
    x = 4,322.96

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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.