Home / 1,388.26-2,082.90-566.74

Finding the Fourth Proportional to 1,388.26, 2,082.90 and 566.74

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Solution

The fourth proportional to 1,388.26, 2,082.90 and 566.74 is: 850.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388.26 : 2,082.90 = 566.74 : x
  2. Step 2: Convert to fraction form
    1,388.26/2,082.90 = 566.74/x
  3. Step 3: Cross multiply
    1,388.26x = 2,082.90 × 566.74
  4. Step 4: Simplify right side
    1,388.26x = 1,180,462.75
  5. Step 5: Solve for x
    x = 1,180,462.75/1,388.26
  6. Step 6: Final answer
    x = 850.32

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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.