Home / 1,930.11-2,663.46-1,079.22

Finding the Fourth Proportional to 1,930.11, 2,663.46 and 1,079.22

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Solution

The fourth proportional to 1,930.11, 2,663.46 and 1,079.22 is: 1,489.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930.11 : 2,663.46 = 1,079.22 : x
  2. Step 2: Convert to fraction form
    1,930.11/2,663.46 = 1,079.22/x
  3. Step 3: Cross multiply
    1,930.11x = 2,663.46 × 1,079.22
  4. Step 4: Simplify right side
    1,930.11x = 2,874,459.30
  5. Step 5: Solve for x
    x = 2,874,459.30/1,930.11
  6. Step 6: Final answer
    x = 1,489.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.