Home / 4,257.78-5,874.10-3,141.36

Finding the Fourth Proportional to 4,257.78, 5,874.10 and 3,141.36

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Solution

The fourth proportional to 4,257.78, 5,874.10 and 3,141.36 is: 4,333.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,257.78 : 5,874.10 = 3,141.36 : x
  2. Step 2: Convert to fraction form
    4,257.78/5,874.10 = 3,141.36/x
  3. Step 3: Cross multiply
    4,257.78x = 5,874.10 × 3,141.36
  4. Step 4: Simplify right side
    4,257.78x = 18,452,662.78
  5. Step 5: Solve for x
    x = 18,452,662.78/4,257.78
  6. Step 6: Final answer
    x = 4,333.87

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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.