Home / 2,965.28-4,092.40-1,689.44

Finding the Fourth Proportional to 2,965.28, 4,092.40 and 1,689.44

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Solution

The fourth proportional to 2,965.28, 4,092.40 and 1,689.44 is: 2,331.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,965.28 : 4,092.40 = 1,689.44 : x
  2. Step 2: Convert to fraction form
    2,965.28/4,092.40 = 1,689.44/x
  3. Step 3: Cross multiply
    2,965.28x = 4,092.40 × 1,689.44
  4. Step 4: Simplify right side
    2,965.28x = 6,913,864.26
  5. Step 5: Solve for x
    x = 6,913,864.26/2,965.28
  6. Step 6: Final answer
    x = 2,331.61

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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.