Home / 2,691.40-3,713.58-1,512.04

Finding the Fourth Proportional to 2,691.40, 3,713.58 and 1,512.04

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Solution

The fourth proportional to 2,691.40, 3,713.58 and 1,512.04 is: 2,086.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691.40 : 3,713.58 = 1,512.04 : x
  2. Step 2: Convert to fraction form
    2,691.40/3,713.58 = 1,512.04/x
  3. Step 3: Cross multiply
    2,691.40x = 3,713.58 × 1,512.04
  4. Step 4: Simplify right side
    2,691.40x = 5,615,081.50
  5. Step 5: Solve for x
    x = 5,615,081.50/2,691.40
  6. Step 6: Final answer
    x = 2,086.31

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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.