Home / 3,746.40-5,169.90-2,067.78

Finding the Fourth Proportional to 3,746.40, 5,169.90 and 2,067.78

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Solution

The fourth proportional to 3,746.40, 5,169.90 and 2,067.78 is: 2,853.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,746.40 : 5,169.90 = 2,067.78 : x
  2. Step 2: Convert to fraction form
    3,746.40/5,169.90 = 2,067.78/x
  3. Step 3: Cross multiply
    3,746.40x = 5,169.90 × 2,067.78
  4. Step 4: Simplify right side
    3,746.40x = 10,690,215.82
  5. Step 5: Solve for x
    x = 10,690,215.82/3,746.40
  6. Step 6: Final answer
    x = 2,853.46

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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.