Home / 1,343.38-2,014.34-418.69

Finding the Fourth Proportional to 1,343.38, 2,014.34 and 418.69

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Solution

The fourth proportional to 1,343.38, 2,014.34 and 418.69 is: 627.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343.38 : 2,014.34 = 418.69 : x
  2. Step 2: Convert to fraction form
    1,343.38/2,014.34 = 418.69/x
  3. Step 3: Cross multiply
    1,343.38x = 2,014.34 × 418.69
  4. Step 4: Simplify right side
    1,343.38x = 843,373.94
  5. Step 5: Solve for x
    x = 843,373.94/1,343.38
  6. Step 6: Final answer
    x = 627.80

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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.