Home / 2,963.28-4,089.19-1,636.90

Finding the Fourth Proportional to 2,963.28, 4,089.19 and 1,636.90

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Solution

The fourth proportional to 2,963.28, 4,089.19 and 1,636.90 is: 2,258.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,963.28 : 4,089.19 = 1,636.90 : x
  2. Step 2: Convert to fraction form
    2,963.28/4,089.19 = 1,636.90/x
  3. Step 3: Cross multiply
    2,963.28x = 4,089.19 × 1,636.90
  4. Step 4: Simplify right side
    2,963.28x = 6,693,595.11
  5. Step 5: Solve for x
    x = 6,693,595.11/2,963.28
  6. Step 6: Final answer
    x = 2,258.85

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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.