Home / 3,512.35-5,268.53-1,321.57

Finding the Fourth Proportional to 3,512.35, 5,268.53 and 1,321.57

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Solution

The fourth proportional to 3,512.35, 5,268.53 and 1,321.57 is: 1,982.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,512.35 : 5,268.53 = 1,321.57 : x
  2. Step 2: Convert to fraction form
    3,512.35/5,268.53 = 1,321.57/x
  3. Step 3: Cross multiply
    3,512.35x = 5,268.53 × 1,321.57
  4. Step 4: Simplify right side
    3,512.35x = 6,962,731.19
  5. Step 5: Solve for x
    x = 6,962,731.19/3,512.35
  6. Step 6: Final answer
    x = 1,982.36

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Similar ratio
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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.