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Finding the Fourth Proportional to 5,228.19, 7,207.92 and 4,478.94

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Solution

The fourth proportional to 5,228.19, 7,207.92 and 4,478.94 is: 6,174.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,228.19 : 7,207.92 = 4,478.94 : x
  2. Step 2: Convert to fraction form
    5,228.19/7,207.92 = 4,478.94/x
  3. Step 3: Cross multiply
    5,228.19x = 7,207.92 × 4,478.94
  4. Step 4: Simplify right side
    5,228.19x = 32,283,841.20
  5. Step 5: Solve for x
    x = 32,283,841.20/5,228.19
  6. Step 6: Final answer
    x = 6,174.96

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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.