Home / 2,340-3,229.20-1,292.13

Finding the Fourth Proportional to 2,340, 3,229.20 and 1,292.13

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Solution

The fourth proportional to 2,340, 3,229.20 and 1,292.13 is: 1,783.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,340 : 3,229.20 = 1,292.13 : x
  2. Step 2: Convert to fraction form
    2,340/3,229.20 = 1,292.13/x
  3. Step 3: Cross multiply
    2,340x = 3,229.20 × 1,292.13
  4. Step 4: Simplify right side
    2,340x = 4,172,546.20
  5. Step 5: Solve for x
    x = 4,172,546.20/2,340
  6. Step 6: Final answer
    x = 1,783.14

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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.