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Finding the Fourth Proportional to 3,616.80, 4,991.16 and 2,044.90

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Solution

The fourth proportional to 3,616.80, 4,991.16 and 2,044.90 is: 2,821.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,616.80 : 4,991.16 = 2,044.90 : x
  2. Step 2: Convert to fraction form
    3,616.80/4,991.16 = 2,044.90/x
  3. Step 3: Cross multiply
    3,616.80x = 4,991.16 × 2,044.90
  4. Step 4: Simplify right side
    3,616.80x = 10,206,423.08
  5. Step 5: Solve for x
    x = 10,206,423.08/3,616.80
  6. Step 6: Final answer
    x = 2,821.95

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1.5x scale

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.