Home / 3,927.38-5,419.78-2,356.38

Finding the Fourth Proportional to 3,927.38, 5,419.78 and 2,356.38

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Solution

The fourth proportional to 3,927.38, 5,419.78 and 2,356.38 is: 3,251.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.38 : 5,419.78 = 2,356.38 : x
  2. Step 2: Convert to fraction form
    3,927.38/5,419.78 = 2,356.38/x
  3. Step 3: Cross multiply
    3,927.38x = 5,419.78 × 2,356.38
  4. Step 4: Simplify right side
    3,927.38x = 12,771,055.31
  5. Step 5: Solve for x
    x = 12,771,055.31/3,927.38
  6. Step 6: Final answer
    x = 3,251.80

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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.