Home / 1,388.52-2,081.85-566.57

Finding the Fourth Proportional to 1,388.52, 2,081.85 and 566.57

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Solution

The fourth proportional to 1,388.52, 2,081.85 and 566.57 is: 849.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388.52 : 2,081.85 = 566.57 : x
  2. Step 2: Convert to fraction form
    1,388.52/2,081.85 = 566.57/x
  3. Step 3: Cross multiply
    1,388.52x = 2,081.85 × 566.57
  4. Step 4: Simplify right side
    1,388.52x = 1,179,513.75
  5. Step 5: Solve for x
    x = 1,179,513.75/1,388.52
  6. Step 6: Final answer
    x = 849.48

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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.