Home / 3,815.30-5,717.28-2,255.64

Finding the Fourth Proportional to 3,815.30, 5,717.28 and 2,255.64

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Solution

The fourth proportional to 3,815.30, 5,717.28 and 2,255.64 is: 3,380.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.30 : 5,717.28 = 2,255.64 : x
  2. Step 2: Convert to fraction form
    3,815.30/5,717.28 = 2,255.64/x
  3. Step 3: Cross multiply
    3,815.30x = 5,717.28 × 2,255.64
  4. Step 4: Simplify right side
    3,815.30x = 12,896,125.46
  5. Step 5: Solve for x
    x = 12,896,125.46/3,815.30
  6. Step 6: Final answer
    x = 3,380.11

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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.