Home / 3,915.28-5,863.20-3,268.88

Finding the Fourth Proportional to 3,915.28, 5,863.20 and 3,268.88

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Solution

The fourth proportional to 3,915.28, 5,863.20 and 3,268.88 is: 4,895.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.28 : 5,863.20 = 3,268.88 : x
  2. Step 2: Convert to fraction form
    3,915.28/5,863.20 = 3,268.88/x
  3. Step 3: Cross multiply
    3,915.28x = 5,863.20 × 3,268.88
  4. Step 4: Simplify right side
    3,915.28x = 19,166,097.22
  5. Step 5: Solve for x
    x = 19,166,097.22/3,915.28
  6. Step 6: Final answer
    x = 4,895.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.