Home / 1,965.25-2,712.42-1,168.75

Finding the Fourth Proportional to 1,965.25, 2,712.42 and 1,168.75

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Solution

The fourth proportional to 1,965.25, 2,712.42 and 1,168.75 is: 1,613.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,965.25 : 2,712.42 = 1,168.75 : x
  2. Step 2: Convert to fraction form
    1,965.25/2,712.42 = 1,168.75/x
  3. Step 3: Cross multiply
    1,965.25x = 2,712.42 × 1,168.75
  4. Step 4: Simplify right side
    1,965.25x = 3,170,140.88
  5. Step 5: Solve for x
    x = 3,170,140.88/1,965.25
  6. Step 6: Final answer
    x = 1,613.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.