Home / 3,850.90-5,314.28-2,126.25

Finding the Fourth Proportional to 3,850.90, 5,314.28 and 2,126.25

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Solution

The fourth proportional to 3,850.90, 5,314.28 and 2,126.25 is: 2,934.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,850.90 : 5,314.28 = 2,126.25 : x
  2. Step 2: Convert to fraction form
    3,850.90/5,314.28 = 2,126.25/x
  3. Step 3: Cross multiply
    3,850.90x = 5,314.28 × 2,126.25
  4. Step 4: Simplify right side
    3,850.90x = 11,299,473.23
  5. Step 5: Solve for x
    x = 11,299,473.23/3,850.90
  6. Step 6: Final answer
    x = 2,934.24

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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.