Home / 3,512.53-5,266.74-1,321.43

Finding the Fourth Proportional to 3,512.53, 5,266.74 and 1,321.43

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Solution

The fourth proportional to 3,512.53, 5,266.74 and 1,321.43 is: 1,981.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,512.53 : 5,266.74 = 1,321.43 : x
  2. Step 2: Convert to fraction form
    3,512.53/5,266.74 = 1,321.43/x
  3. Step 3: Cross multiply
    3,512.53x = 5,266.74 × 1,321.43
  4. Step 4: Simplify right side
    3,512.53x = 6,959,595.30
  5. Step 5: Solve for x
    x = 6,959,595.30/3,512.53
  6. Step 6: Final answer
    x = 1,981.37

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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.