Home / 3,812.56-5,712.96-2,575.12

Finding the Fourth Proportional to 3,812.56, 5,712.96 and 2,575.12

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Solution

The fourth proportional to 3,812.56, 5,712.96 and 2,575.12 is: 3,858.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812.56 : 5,712.96 = 2,575.12 : x
  2. Step 2: Convert to fraction form
    3,812.56/5,712.96 = 2,575.12/x
  3. Step 3: Cross multiply
    3,812.56x = 5,712.96 × 2,575.12
  4. Step 4: Simplify right side
    3,812.56x = 14,711,557.56
  5. Step 5: Solve for x
    x = 14,711,557.56/3,812.56
  6. Step 6: Final answer
    x = 3,858.71

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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.