Home / 5,212.27-7,191.13-2,972.53

Finding the Fourth Proportional to 5,212.27, 7,191.13 and 2,972.53

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Solution

The fourth proportional to 5,212.27, 7,191.13 and 2,972.53 is: 4,101.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.27 : 7,191.13 = 2,972.53 : x
  2. Step 2: Convert to fraction form
    5,212.27/7,191.13 = 2,972.53/x
  3. Step 3: Cross multiply
    5,212.27x = 7,191.13 × 2,972.53
  4. Step 4: Simplify right side
    5,212.27x = 21,375,849.66
  5. Step 5: Solve for x
    x = 21,375,849.66/5,212.27
  6. Step 6: Final answer
    x = 4,101.06

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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.