Home / 1,765.23-2,436.17-979.44

Finding the Fourth Proportional to 1,765.23, 2,436.17 and 979.44

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Solution

The fourth proportional to 1,765.23, 2,436.17 and 979.44 is: 1,351.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,765.23 : 2,436.17 = 979.44 : x
  2. Step 2: Convert to fraction form
    1,765.23/2,436.17 = 979.44/x
  3. Step 3: Cross multiply
    1,765.23x = 2,436.17 × 979.44
  4. Step 4: Simplify right side
    1,765.23x = 2,386,077.45
  5. Step 5: Solve for x
    x = 2,386,077.45/1,765.23
  6. Step 6: Final answer
    x = 1,351.71

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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.