Home / 1,388.53-2,081.58-566.92

Finding the Fourth Proportional to 1,388.53, 2,081.58 and 566.92

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Solution

The fourth proportional to 1,388.53, 2,081.58 and 566.92 is: 849.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388.53 : 2,081.58 = 566.92 : x
  2. Step 2: Convert to fraction form
    1,388.53/2,081.58 = 566.92/x
  3. Step 3: Cross multiply
    1,388.53x = 2,081.58 × 566.92
  4. Step 4: Simplify right side
    1,388.53x = 1,180,089.33
  5. Step 5: Solve for x
    x = 1,180,089.33/1,388.53
  6. Step 6: Final answer
    x = 849.88

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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.