Home / 4,103.74-5,665.78-2,689.48

Finding the Fourth Proportional to 4,103.74, 5,665.78 and 2,689.48

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Solution

The fourth proportional to 4,103.74, 5,665.78 and 2,689.48 is: 3,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,103.74 : 5,665.78 = 2,689.48 : x
  2. Step 2: Convert to fraction form
    4,103.74/5,665.78 = 2,689.48/x
  3. Step 3: Cross multiply
    4,103.74x = 5,665.78 × 2,689.48
  4. Step 4: Simplify right side
    4,103.74x = 15,238,012.44
  5. Step 5: Solve for x
    x = 15,238,012.44/4,103.74
  6. Step 6: Final answer
    x = 3,713.20

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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.