Home / 3,927.29-5,386.77-3,715.88

Finding the Fourth Proportional to 3,927.29, 5,386.77 and 3,715.88

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Solution

The fourth proportional to 3,927.29, 5,386.77 and 3,715.88 is: 5,096.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.29 : 5,386.77 = 3,715.88 : x
  2. Step 2: Convert to fraction form
    3,927.29/5,386.77 = 3,715.88/x
  3. Step 3: Cross multiply
    3,927.29x = 5,386.77 × 3,715.88
  4. Step 4: Simplify right side
    3,927.29x = 20,016,563.97
  5. Step 5: Solve for x
    x = 20,016,563.97/3,927.29
  6. Step 6: Final answer
    x = 5,096.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.