Home / 1,388.08-2,082.12-566.36

Finding the Fourth Proportional to 1,388.08, 2,082.12 and 566.36

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Solution

The fourth proportional to 1,388.08, 2,082.12 and 566.36 is: 849.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388.08 : 2,082.12 = 566.36 : x
  2. Step 2: Convert to fraction form
    1,388.08/2,082.12 = 566.36/x
  3. Step 3: Cross multiply
    1,388.08x = 2,082.12 × 566.36
  4. Step 4: Simplify right side
    1,388.08x = 1,179,229.48
  5. Step 5: Solve for x
    x = 1,179,229.48/1,388.08
  6. Step 6: Final answer
    x = 849.54

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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.