Home / 2,320.11-3,479.44-759.86

Finding the Fourth Proportional to 2,320.11, 3,479.44 and 759.86

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Solution

The fourth proportional to 2,320.11, 3,479.44 and 759.86 is: 1,139.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,320.11 : 3,479.44 = 759.86 : x
  2. Step 2: Convert to fraction form
    2,320.11/3,479.44 = 759.86/x
  3. Step 3: Cross multiply
    2,320.11x = 3,479.44 × 759.86
  4. Step 4: Simplify right side
    2,320.11x = 2,643,887.28
  5. Step 5: Solve for x
    x = 2,643,887.28/2,320.11
  6. Step 6: Final answer
    x = 1,139.55

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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.