Home / 7,221.49-10,833.78-2,291.52

Finding the Fourth Proportional to 7,221.49, 10,833.78 and 2,291.52

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Solution

The fourth proportional to 7,221.49, 10,833.78 and 2,291.52 is: 3,437.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.49 : 10,833.78 = 2,291.52 : x
  2. Step 2: Convert to fraction form
    7,221.49/10,833.78 = 2,291.52/x
  3. Step 3: Cross multiply
    7,221.49x = 10,833.78 × 2,291.52
  4. Step 4: Simplify right side
    7,221.49x = 24,825,872.77
  5. Step 5: Solve for x
    x = 24,825,872.77/7,221.49
  6. Step 6: Final answer
    x = 3,437.78

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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.