Home / 2,222.31-3,329.80-760.66

Finding the Fourth Proportional to 2,222.31, 3,329.80 and 760.66

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Solution

The fourth proportional to 2,222.31, 3,329.80 and 760.66 is: 1,139.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,222.31 : 3,329.80 = 760.66 : x
  2. Step 2: Convert to fraction form
    2,222.31/3,329.80 = 760.66/x
  3. Step 3: Cross multiply
    2,222.31x = 3,329.80 × 760.66
  4. Step 4: Simplify right side
    2,222.31x = 2,532,845.67
  5. Step 5: Solve for x
    x = 2,532,845.67/2,222.31
  6. Step 6: Final answer
    x = 1,139.74

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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.