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Finding the Fourth Proportional to 4,668.72, 6,442.80 and 2,572.88

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Solution

The fourth proportional to 4,668.72, 6,442.80 and 2,572.88 is: 3,550.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,668.72 : 6,442.80 = 2,572.88 : x
  2. Step 2: Convert to fraction form
    4,668.72/6,442.80 = 2,572.88/x
  3. Step 3: Cross multiply
    4,668.72x = 6,442.80 × 2,572.88
  4. Step 4: Simplify right side
    4,668.72x = 16,576,551.26
  5. Step 5: Solve for x
    x = 16,576,551.26/4,668.72
  6. Step 6: Final answer
    x = 3,550.56

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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.