Home / 2,965.28-4,092.12-1,639.04

Finding the Fourth Proportional to 2,965.28, 4,092.12 and 1,639.04

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Solution

The fourth proportional to 2,965.28, 4,092.12 and 1,639.04 is: 2,261.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,965.28 : 4,092.12 = 1,639.04 : x
  2. Step 2: Convert to fraction form
    2,965.28/4,092.12 = 1,639.04/x
  3. Step 3: Cross multiply
    2,965.28x = 4,092.12 × 1,639.04
  4. Step 4: Simplify right side
    2,965.28x = 6,707,127.90
  5. Step 5: Solve for x
    x = 6,707,127.90/2,965.28
  6. Step 6: Final answer
    x = 2,261.89

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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.