Home / 3,954.98-5,458.16-2,276.78

Finding the Fourth Proportional to 3,954.98, 5,458.16 and 2,276.78

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Solution

The fourth proportional to 3,954.98, 5,458.16 and 2,276.78 is: 3,142.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,954.98 : 5,458.16 = 2,276.78 : x
  2. Step 2: Convert to fraction form
    3,954.98/5,458.16 = 2,276.78/x
  3. Step 3: Cross multiply
    3,954.98x = 5,458.16 × 2,276.78
  4. Step 4: Simplify right side
    3,954.98x = 12,427,029.52
  5. Step 5: Solve for x
    x = 12,427,029.52/3,954.98
  6. Step 6: Final answer
    x = 3,142.12

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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.