Home / 2,691.21-3,713.61-1,512.26

Finding the Fourth Proportional to 2,691.21, 3,713.61 and 1,512.26

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Solution

The fourth proportional to 2,691.21, 3,713.61 and 1,512.26 is: 2,086.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691.21 : 3,713.61 = 1,512.26 : x
  2. Step 2: Convert to fraction form
    2,691.21/3,713.61 = 1,512.26/x
  3. Step 3: Cross multiply
    2,691.21x = 3,713.61 × 1,512.26
  4. Step 4: Simplify right side
    2,691.21x = 5,615,943.86
  5. Step 5: Solve for x
    x = 5,615,943.86/2,691.21
  6. Step 6: Final answer
    x = 2,086.77

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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.