Home / 3,812.25-5,713.28-1,618.23

Finding the Fourth Proportional to 3,812.25, 5,713.28 and 1,618.23

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Solution

The fourth proportional to 3,812.25, 5,713.28 and 1,618.23 is: 2,425.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812.25 : 5,713.28 = 1,618.23 : x
  2. Step 2: Convert to fraction form
    3,812.25/5,713.28 = 1,618.23/x
  3. Step 3: Cross multiply
    3,812.25x = 5,713.28 × 1,618.23
  4. Step 4: Simplify right side
    3,812.25x = 9,245,401.09
  5. Step 5: Solve for x
    x = 9,245,401.09/3,812.25
  6. Step 6: Final answer
    x = 2,425.18

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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.