Home / 2,342.20-3,513.40-610.78

Finding the Fourth Proportional to 2,342.20, 3,513.40 and 610.78

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Solution

The fourth proportional to 2,342.20, 3,513.40 and 610.78 is: 916.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,342.20 : 3,513.40 = 610.78 : x
  2. Step 2: Convert to fraction form
    2,342.20/3,513.40 = 610.78/x
  3. Step 3: Cross multiply
    2,342.20x = 3,513.40 × 610.78
  4. Step 4: Simplify right side
    2,342.20x = 2,145,914.45
  5. Step 5: Solve for x
    x = 2,145,914.45/2,342.20
  6. Step 6: Final answer
    x = 916.20

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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.