Home / 5,239.10-7,229.40-3,000.76

Finding the Fourth Proportional to 5,239.10, 7,229.40 and 3,000.76

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Solution

The fourth proportional to 5,239.10, 7,229.40 and 3,000.76 is: 4,140.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.10 : 7,229.40 = 3,000.76 : x
  2. Step 2: Convert to fraction form
    5,239.10/7,229.40 = 3,000.76/x
  3. Step 3: Cross multiply
    5,239.10x = 7,229.40 × 3,000.76
  4. Step 4: Simplify right side
    5,239.10x = 21,693,694.34
  5. Step 5: Solve for x
    x = 21,693,694.34/5,239.10
  6. Step 6: Final answer
    x = 4,140.73

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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.