Home / 5,182.20-7,151.29-2,824.36

Finding the Fourth Proportional to 5,182.20, 7,151.29 and 2,824.36

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Solution

The fourth proportional to 5,182.20, 7,151.29 and 2,824.36 is: 3,897.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,182.20 : 7,151.29 = 2,824.36 : x
  2. Step 2: Convert to fraction form
    5,182.20/7,151.29 = 2,824.36/x
  3. Step 3: Cross multiply
    5,182.20x = 7,151.29 × 2,824.36
  4. Step 4: Simplify right side
    5,182.20x = 20,197,817.42
  5. Step 5: Solve for x
    x = 20,197,817.42/5,182.20
  6. Step 6: Final answer
    x = 3,897.54

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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.