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Finding the Fourth Proportional to 7,244.29, 10,866.10 and 1,979.27

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Solution

The fourth proportional to 7,244.29, 10,866.10 and 1,979.27 is: 2,968.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,244.29 : 10,866.10 = 1,979.27 : x
  2. Step 2: Convert to fraction form
    7,244.29/10,866.10 = 1,979.27/x
  3. Step 3: Cross multiply
    7,244.29x = 10,866.10 × 1,979.27
  4. Step 4: Simplify right side
    7,244.29x = 21,506,945.75
  5. Step 5: Solve for x
    x = 21,506,945.75/7,244.29
  6. Step 6: Final answer
    x = 2,968.81

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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.