Home / 7,481.28-11,221.08-1,934.65

Finding the Fourth Proportional to 7,481.28, 11,221.08 and 1,934.65

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Solution

The fourth proportional to 7,481.28, 11,221.08 and 1,934.65 is: 2,901.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,481.28 : 11,221.08 = 1,934.65 : x
  2. Step 2: Convert to fraction form
    7,481.28/11,221.08 = 1,934.65/x
  3. Step 3: Cross multiply
    7,481.28x = 11,221.08 × 1,934.65
  4. Step 4: Simplify right side
    7,481.28x = 21,708,862.42
  5. Step 5: Solve for x
    x = 21,708,862.42/7,481.28
  6. Step 6: Final answer
    x = 2,901.76

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1.5x scale

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.