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Finding the Fourth Proportional to 3,062.86, 4,593.90 and 871.78

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Solution

The fourth proportional to 3,062.86, 4,593.90 and 871.78 is: 1,307.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,062.86 : 4,593.90 = 871.78 : x
  2. Step 2: Convert to fraction form
    3,062.86/4,593.90 = 871.78/x
  3. Step 3: Cross multiply
    3,062.86x = 4,593.90 × 871.78
  4. Step 4: Simplify right side
    3,062.86x = 4,004,870.14
  5. Step 5: Solve for x
    x = 4,004,870.14/3,062.86
  6. Step 6: Final answer
    x = 1,307.56

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.