Home / 3,806.88-5,258.16-2,757.12

Finding the Fourth Proportional to 3,806.88, 5,258.16 and 2,757.12

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Solution

The fourth proportional to 3,806.88, 5,258.16 and 2,757.12 is: 3,808.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,806.88 : 5,258.16 = 2,757.12 : x
  2. Step 2: Convert to fraction form
    3,806.88/5,258.16 = 2,757.12/x
  3. Step 3: Cross multiply
    3,806.88x = 5,258.16 × 2,757.12
  4. Step 4: Simplify right side
    3,806.88x = 14,497,378.10
  5. Step 5: Solve for x
    x = 14,497,378.10/3,806.88
  6. Step 6: Final answer
    x = 3,808.20

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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.