Home / 1,343.20-2,012.87-591.81

Finding the Fourth Proportional to 1,343.20, 2,012.87 and 591.81

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Solution

The fourth proportional to 1,343.20, 2,012.87 and 591.81 is: 886.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343.20 : 2,012.87 = 591.81 : x
  2. Step 2: Convert to fraction form
    1,343.20/2,012.87 = 591.81/x
  3. Step 3: Cross multiply
    1,343.20x = 2,012.87 × 591.81
  4. Step 4: Simplify right side
    1,343.20x = 1,191,236.59
  5. Step 5: Solve for x
    x = 1,191,236.59/1,343.20
  6. Step 6: Final answer
    x = 886.86

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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.