Home / 7,422.90-11,139.99-2,747.33

Finding the Fourth Proportional to 7,422.90, 11,139.99 and 2,747.33

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Solution

The fourth proportional to 7,422.90, 11,139.99 and 2,747.33 is: 4,123.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,422.90 : 11,139.99 = 2,747.33 : x
  2. Step 2: Convert to fraction form
    7,422.90/11,139.99 = 2,747.33/x
  3. Step 3: Cross multiply
    7,422.90x = 11,139.99 × 2,747.33
  4. Step 4: Simplify right side
    7,422.90x = 30,605,228.73
  5. Step 5: Solve for x
    x = 30,605,228.73/7,422.90
  6. Step 6: Final answer
    x = 4,123.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.