Home / 3,850.14-5,312.79-2,842.38

Finding the Fourth Proportional to 3,850.14, 5,312.79 and 2,842.38

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Solution

The fourth proportional to 3,850.14, 5,312.79 and 2,842.38 is: 3,922.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,850.14 : 5,312.79 = 2,842.38 : x
  2. Step 2: Convert to fraction form
    3,850.14/5,312.79 = 2,842.38/x
  3. Step 3: Cross multiply
    3,850.14x = 5,312.79 × 2,842.38
  4. Step 4: Simplify right side
    3,850.14x = 15,100,968.04
  5. Step 5: Solve for x
    x = 15,100,968.04/3,850.14
  6. Step 6: Final answer
    x = 3,922.18

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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.