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Finding the Fourth Proportional to 2,652.56, 3,979.02 and 804.14

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Solution

The fourth proportional to 2,652.56, 3,979.02 and 804.14 is: 1,206.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,652.56 : 3,979.02 = 804.14 : x
  2. Step 2: Convert to fraction form
    2,652.56/3,979.02 = 804.14/x
  3. Step 3: Cross multiply
    2,652.56x = 3,979.02 × 804.14
  4. Step 4: Simplify right side
    2,652.56x = 3,199,689.14
  5. Step 5: Solve for x
    x = 3,199,689.14/2,652.56
  6. Step 6: Final answer
    x = 1,206.26

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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.