Home / 7,488.20-11,230.04-2,221.98

Finding the Fourth Proportional to 7,488.20, 11,230.04 and 2,221.98

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Solution

The fourth proportional to 7,488.20, 11,230.04 and 2,221.98 is: 3,332.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,488.20 : 11,230.04 = 2,221.98 : x
  2. Step 2: Convert to fraction form
    7,488.20/11,230.04 = 2,221.98/x
  3. Step 3: Cross multiply
    7,488.20x = 11,230.04 × 2,221.98
  4. Step 4: Simplify right side
    7,488.20x = 24,952,924.28
  5. Step 5: Solve for x
    x = 24,952,924.28/7,488.20
  6. Step 6: Final answer
    x = 3,332.30

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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.