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Finding the Fourth Proportional to 7,454.28, 10,275.48 and 5,879.64

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Solution

The fourth proportional to 7,454.28, 10,275.48 and 5,879.64 is: 8,104.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,454.28 : 10,275.48 = 5,879.64 : x
  2. Step 2: Convert to fraction form
    7,454.28/10,275.48 = 5,879.64/x
  3. Step 3: Cross multiply
    7,454.28x = 10,275.48 × 5,879.64
  4. Step 4: Simplify right side
    7,454.28x = 60,416,123.23
  5. Step 5: Solve for x
    x = 60,416,123.23/7,454.28
  6. Step 6: Final answer
    x = 8,104.89

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.