Home / 7,766.72-11,648.08-2,218.88

Finding the Fourth Proportional to 7,766.72, 11,648.08 and 2,218.88

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Solution

The fourth proportional to 7,766.72, 11,648.08 and 2,218.88 is: 3,327.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,766.72 : 11,648.08 = 2,218.88 : x
  2. Step 2: Convert to fraction form
    7,766.72/11,648.08 = 2,218.88/x
  3. Step 3: Cross multiply
    7,766.72x = 11,648.08 × 2,218.88
  4. Step 4: Simplify right side
    7,766.72x = 25,845,691.75
  5. Step 5: Solve for x
    x = 25,845,691.75/7,766.72
  6. Step 6: Final answer
    x = 3,327.75

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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.