Home / 3,815.20-5,264.42-2,243.80

Finding the Fourth Proportional to 3,815.20, 5,264.42 and 2,243.80

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Solution

The fourth proportional to 3,815.20, 5,264.42 and 2,243.80 is: 3,096.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.20 : 5,264.42 = 2,243.80 : x
  2. Step 2: Convert to fraction form
    3,815.20/5,264.42 = 2,243.80/x
  3. Step 3: Cross multiply
    3,815.20x = 5,264.42 × 2,243.80
  4. Step 4: Simplify right side
    3,815.20x = 11,812,305.60
  5. Step 5: Solve for x
    x = 11,812,305.60/3,815.20
  6. Step 6: Final answer
    x = 3,096.12

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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.