Home / 4,778.05-7,157.79-2,691.73

Finding the Fourth Proportional to 4,778.05, 7,157.79 and 2,691.73

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Solution

The fourth proportional to 4,778.05, 7,157.79 and 2,691.73 is: 4,032.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,778.05 : 7,157.79 = 2,691.73 : x
  2. Step 2: Convert to fraction form
    4,778.05/7,157.79 = 2,691.73/x
  3. Step 3: Cross multiply
    4,778.05x = 7,157.79 × 2,691.73
  4. Step 4: Simplify right side
    4,778.05x = 19,266,838.08
  5. Step 5: Solve for x
    x = 19,266,838.08/4,778.05
  6. Step 6: Final answer
    x = 4,032.36

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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.