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Finding the Fourth Proportional to 5,489.90, 7,576.02 and 2,971.99

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Solution

The fourth proportional to 5,489.90, 7,576.02 and 2,971.99 is: 4,101.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,489.90 : 7,576.02 = 2,971.99 : x
  2. Step 2: Convert to fraction form
    5,489.90/7,576.02 = 2,971.99/x
  3. Step 3: Cross multiply
    5,489.90x = 7,576.02 × 2,971.99
  4. Step 4: Simplify right side
    5,489.90x = 22,515,862.79
  5. Step 5: Solve for x
    x = 22,515,862.79/5,489.90
  6. Step 6: Final answer
    x = 4,101.33

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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.