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Finding the Fourth Proportional to 1,671.68, 2,306.53 and 1,008.29

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Solution

The fourth proportional to 1,671.68, 2,306.53 and 1,008.29 is: 1,391.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,671.68 : 2,306.53 = 1,008.29 : x
  2. Step 2: Convert to fraction form
    1,671.68/2,306.53 = 1,008.29/x
  3. Step 3: Cross multiply
    1,671.68x = 2,306.53 × 1,008.29
  4. Step 4: Simplify right side
    1,671.68x = 2,325,651.13
  5. Step 5: Solve for x
    x = 2,325,651.13/1,671.68
  6. Step 6: Final answer
    x = 1,391.21

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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.