Home / 5,229.27-7,216.45-2,991.13

Finding the Fourth Proportional to 5,229.27, 7,216.45 and 2,991.13

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Solution

The fourth proportional to 5,229.27, 7,216.45 and 2,991.13 is: 4,127.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,229.27 : 7,216.45 = 2,991.13 : x
  2. Step 2: Convert to fraction form
    5,229.27/7,216.45 = 2,991.13/x
  3. Step 3: Cross multiply
    5,229.27x = 7,216.45 × 2,991.13
  4. Step 4: Simplify right side
    5,229.27x = 21,585,314.57
  5. Step 5: Solve for x
    x = 21,585,314.57/5,229.27
  6. Step 6: Final answer
    x = 4,127.79

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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.