Home / 1,388.10-2,082.39-566.82

Finding the Fourth Proportional to 1,388.10, 2,082.39 and 566.82

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Solution

The fourth proportional to 1,388.10, 2,082.39 and 566.82 is: 850.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388.10 : 2,082.39 = 566.82 : x
  2. Step 2: Convert to fraction form
    1,388.10/2,082.39 = 566.82/x
  3. Step 3: Cross multiply
    1,388.10x = 2,082.39 × 566.82
  4. Step 4: Simplify right side
    1,388.10x = 1,180,340.30
  5. Step 5: Solve for x
    x = 1,180,340.30/1,388.10
  6. Step 6: Final answer
    x = 850.33

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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.