Home / 7,422.34-11,139.14-2,746.78

Finding the Fourth Proportional to 7,422.34, 11,139.14 and 2,746.78

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Solution

The fourth proportional to 7,422.34, 11,139.14 and 2,746.78 is: 4,122.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,422.34 : 11,139.14 = 2,746.78 : x
  2. Step 2: Convert to fraction form
    7,422.34/11,139.14 = 2,746.78/x
  3. Step 3: Cross multiply
    7,422.34x = 11,139.14 × 2,746.78
  4. Step 4: Simplify right side
    7,422.34x = 30,596,766.97
  5. Step 5: Solve for x
    x = 30,596,766.97/7,422.34
  6. Step 6: Final answer
    x = 4,122.25

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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.