Home / 2,874.24-3,966.78-1,695.42

Finding the Fourth Proportional to 2,874.24, 3,966.78 and 1,695.42

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Solution

The fourth proportional to 2,874.24, 3,966.78 and 1,695.42 is: 2,339.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,874.24 : 3,966.78 = 1,695.42 : x
  2. Step 2: Convert to fraction form
    2,874.24/3,966.78 = 1,695.42/x
  3. Step 3: Cross multiply
    2,874.24x = 3,966.78 × 1,695.42
  4. Step 4: Simplify right side
    2,874.24x = 6,725,358.15
  5. Step 5: Solve for x
    x = 6,725,358.15/2,874.24
  6. Step 6: Final answer
    x = 2,339.87

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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.