Home / 3,512.10-5,268.15-1,431.66

Finding the Fourth Proportional to 3,512.10, 5,268.15 and 1,431.66

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Solution

The fourth proportional to 3,512.10, 5,268.15 and 1,431.66 is: 2,147.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,512.10 : 5,268.15 = 1,431.66 : x
  2. Step 2: Convert to fraction form
    3,512.10/5,268.15 = 1,431.66/x
  3. Step 3: Cross multiply
    3,512.10x = 5,268.15 × 1,431.66
  4. Step 4: Simplify right side
    3,512.10x = 7,542,199.63
  5. Step 5: Solve for x
    x = 7,542,199.63/3,512.10
  6. Step 6: Final answer
    x = 2,147.49

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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.