Home / 2,812.36-3,882.15-2,517.12

Finding the Fourth Proportional to 2,812.36, 3,882.15 and 2,517.12

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Solution

The fourth proportional to 2,812.36, 3,882.15 and 2,517.12 is: 3,474.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.36 : 3,882.15 = 2,517.12 : x
  2. Step 2: Convert to fraction form
    2,812.36/3,882.15 = 2,517.12/x
  3. Step 3: Cross multiply
    2,812.36x = 3,882.15 × 2,517.12
  4. Step 4: Simplify right side
    2,812.36x = 9,771,837.41
  5. Step 5: Solve for x
    x = 9,771,837.41/2,812.36
  6. Step 6: Final answer
    x = 3,474.60

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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.