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Finding the Fourth Proportional to 5,489.97, 7,573.53 and 5,277.79

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Solution

The fourth proportional to 5,489.97, 7,573.53 and 5,277.79 is: 7,280.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,489.97 : 7,573.53 = 5,277.79 : x
  2. Step 2: Convert to fraction form
    5,489.97/7,573.53 = 5,277.79/x
  3. Step 3: Cross multiply
    5,489.97x = 7,573.53 × 5,277.79
  4. Step 4: Simplify right side
    5,489.97x = 39,971,500.90
  5. Step 5: Solve for x
    x = 39,971,500.90/5,489.97
  6. Step 6: Final answer
    x = 7,280.83

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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.