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Finding the Fourth Proportional to 3,616.13, 5,424.20 and 880.13

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Solution

The fourth proportional to 3,616.13, 5,424.20 and 880.13 is: 1,320.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,616.13 : 5,424.20 = 880.13 : x
  2. Step 2: Convert to fraction form
    3,616.13/5,424.20 = 880.13/x
  3. Step 3: Cross multiply
    3,616.13x = 5,424.20 × 880.13
  4. Step 4: Simplify right side
    3,616.13x = 4,773,969.62
  5. Step 5: Solve for x
    x = 4,773,969.62/3,616.13
  6. Step 6: Final answer
    x = 1,320.19

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.