Home / 1,343.16-2,014.26-418.62

Finding the Fourth Proportional to 1,343.16, 2,014.26 and 418.62

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Solution

The fourth proportional to 1,343.16, 2,014.26 and 418.62 is: 627.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343.16 : 2,014.26 = 418.62 : x
  2. Step 2: Convert to fraction form
    1,343.16/2,014.26 = 418.62/x
  3. Step 3: Cross multiply
    1,343.16x = 2,014.26 × 418.62
  4. Step 4: Simplify right side
    1,343.16x = 843,209.52
  5. Step 5: Solve for x
    x = 843,209.52/1,343.16
  6. Step 6: Final answer
    x = 627.78

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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.