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Finding the Fourth Proportional to 5,915.61, 8,879.55 and 4,357.36

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Solution

The fourth proportional to 5,915.61, 8,879.55 and 4,357.36 is: 6,540.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,915.61 : 8,879.55 = 4,357.36 : x
  2. Step 2: Convert to fraction form
    5,915.61/8,879.55 = 4,357.36/x
  3. Step 3: Cross multiply
    5,915.61x = 8,879.55 × 4,357.36
  4. Step 4: Simplify right side
    5,915.61x = 38,691,395.99
  5. Step 5: Solve for x
    x = 38,691,395.99/5,915.61
  6. Step 6: Final answer
    x = 6,540.56

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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.