Home / 1,388.89-2,082.75-566.61

Finding the Fourth Proportional to 1,388.89, 2,082.75 and 566.61

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Solution

The fourth proportional to 1,388.89, 2,082.75 and 566.61 is: 849.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388.89 : 2,082.75 = 566.61 : x
  2. Step 2: Convert to fraction form
    1,388.89/2,082.75 = 566.61/x
  3. Step 3: Cross multiply
    1,388.89x = 2,082.75 × 566.61
  4. Step 4: Simplify right side
    1,388.89x = 1,180,106.98
  5. Step 5: Solve for x
    x = 1,180,106.98/1,388.89
  6. Step 6: Final answer
    x = 849.68

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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.