Home / 3,927.99-5,419.92-2,882.55

Finding the Fourth Proportional to 3,927.99, 5,419.92 and 2,882.55

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Solution

The fourth proportional to 3,927.99, 5,419.92 and 2,882.55 is: 3,977.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.99 : 5,419.92 = 2,882.55 : x
  2. Step 2: Convert to fraction form
    3,927.99/5,419.92 = 2,882.55/x
  3. Step 3: Cross multiply
    3,927.99x = 5,419.92 × 2,882.55
  4. Step 4: Simplify right side
    3,927.99x = 15,623,190.40
  5. Step 5: Solve for x
    x = 15,623,190.40/3,927.99
  6. Step 6: Final answer
    x = 3,977.40

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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.