Home / 1,352.56-2,029.34-531.12

Finding the Fourth Proportional to 1,352.56, 2,029.34 and 531.12

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Solution

The fourth proportional to 1,352.56, 2,029.34 and 531.12 is: 796.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352.56 : 2,029.34 = 531.12 : x
  2. Step 2: Convert to fraction form
    1,352.56/2,029.34 = 531.12/x
  3. Step 3: Cross multiply
    1,352.56x = 2,029.34 × 531.12
  4. Step 4: Simplify right side
    1,352.56x = 1,077,823.06
  5. Step 5: Solve for x
    x = 1,077,823.06/1,352.56
  6. Step 6: Final answer
    x = 796.88

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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.