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Finding the Fourth Proportional to 7,207.77, 10,812.77 and 3,047.79

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Solution

The fourth proportional to 7,207.77, 10,812.77 and 3,047.79 is: 4,572.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,207.77 : 10,812.77 = 3,047.79 : x
  2. Step 2: Convert to fraction form
    7,207.77/10,812.77 = 3,047.79/x
  3. Step 3: Cross multiply
    7,207.77x = 10,812.77 × 3,047.79
  4. Step 4: Simplify right side
    7,207.77x = 32,955,052.28
  5. Step 5: Solve for x
    x = 32,955,052.28/7,207.77
  6. Step 6: Final answer
    x = 4,572.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.