Home / 2,319.17-3,478.29-759.22

Finding the Fourth Proportional to 2,319.17, 3,478.29 and 759.22

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Solution

The fourth proportional to 2,319.17, 3,478.29 and 759.22 is: 1,138.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.17 : 3,478.29 = 759.22 : x
  2. Step 2: Convert to fraction form
    2,319.17/3,478.29 = 759.22/x
  3. Step 3: Cross multiply
    2,319.17x = 3,478.29 × 759.22
  4. Step 4: Simplify right side
    2,319.17x = 2,640,787.33
  5. Step 5: Solve for x
    x = 2,640,787.33/2,319.17
  6. Step 6: Final answer
    x = 1,138.68

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1.5x scale

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.