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Finding the Fourth Proportional to 7,049.72, 9,727.80 and 4,064.96

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Solution

The fourth proportional to 7,049.72, 9,727.80 and 4,064.96 is: 5,609.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,049.72 : 9,727.80 = 4,064.96 : x
  2. Step 2: Convert to fraction form
    7,049.72/9,727.80 = 4,064.96/x
  3. Step 3: Cross multiply
    7,049.72x = 9,727.80 × 4,064.96
  4. Step 4: Simplify right side
    7,049.72x = 39,543,117.89
  5. Step 5: Solve for x
    x = 39,543,117.89/7,049.72
  6. Step 6: Final answer
    x = 5,609.18

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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.