Home / 1,081.28-1,622.13-350.66

Finding the Fourth Proportional to 1,081.28, 1,622.13 and 350.66

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Solution

The fourth proportional to 1,081.28, 1,622.13 and 350.66 is: 526.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081.28 : 1,622.13 = 350.66 : x
  2. Step 2: Convert to fraction form
    1,081.28/1,622.13 = 350.66/x
  3. Step 3: Cross multiply
    1,081.28x = 1,622.13 × 350.66
  4. Step 4: Simplify right side
    1,081.28x = 568,816.11
  5. Step 5: Solve for x
    x = 568,816.11/1,081.28
  6. Step 6: Final answer
    x = 526.06

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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.