Home / 3,081.42-4,252.28-1,684.17

Finding the Fourth Proportional to 3,081.42, 4,252.28 and 1,684.17

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Solution

The fourth proportional to 3,081.42, 4,252.28 and 1,684.17 is: 2,324.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.42 : 4,252.28 = 1,684.17 : x
  2. Step 2: Convert to fraction form
    3,081.42/4,252.28 = 1,684.17/x
  3. Step 3: Cross multiply
    3,081.42x = 4,252.28 × 1,684.17
  4. Step 4: Simplify right side
    3,081.42x = 7,161,553.99
  5. Step 5: Solve for x
    x = 7,161,553.99/3,081.42
  6. Step 6: Final answer
    x = 2,324.11

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Half scale
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Double scale
Find fourth proportional to 3,082.42, 4,253.65 and 1,685.17
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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.