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Finding the Fourth Proportional to 5,463.68, 7,539.48 and 2,979.68

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Solution

The fourth proportional to 5,463.68, 7,539.48 and 2,979.68 is: 4,111.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,463.68 : 7,539.48 = 2,979.68 : x
  2. Step 2: Convert to fraction form
    5,463.68/7,539.48 = 2,979.68/x
  3. Step 3: Cross multiply
    5,463.68x = 7,539.48 × 2,979.68
  4. Step 4: Simplify right side
    5,463.68x = 22,465,237.77
  5. Step 5: Solve for x
    x = 22,465,237.77/5,463.68
  6. Step 6: Final answer
    x = 4,111.74

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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.