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Finding the Fourth Proportional to 2,965.52, 4,092.18 and 1,639.28

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Solution

The fourth proportional to 2,965.52, 4,092.18 and 1,639.28 is: 2,262.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,965.52 : 4,092.18 = 1,639.28 : x
  2. Step 2: Convert to fraction form
    2,965.52/4,092.18 = 1,639.28/x
  3. Step 3: Cross multiply
    2,965.52x = 4,092.18 × 1,639.28
  4. Step 4: Simplify right side
    2,965.52x = 6,708,228.83
  5. Step 5: Solve for x
    x = 6,708,228.83/2,965.52
  6. Step 6: Final answer
    x = 2,262.08

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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.