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Finding the Fourth Proportional to 2,079.51, 2,869.04 and 1,371.71

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Solution

The fourth proportional to 2,079.51, 2,869.04 and 1,371.71 is: 1,892.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.51 : 2,869.04 = 1,371.71 : x
  2. Step 2: Convert to fraction form
    2,079.51/2,869.04 = 1,371.71/x
  3. Step 3: Cross multiply
    2,079.51x = 2,869.04 × 1,371.71
  4. Step 4: Simplify right side
    2,079.51x = 3,935,469.65
  5. Step 5: Solve for x
    x = 3,935,469.65/2,079.51
  6. Step 6: Final answer
    x = 1,892.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.