Home / 5,081.31-7,012.11-2,843.40

Finding the Fourth Proportional to 5,081.31, 7,012.11 and 2,843.40

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Solution

The fourth proportional to 5,081.31, 7,012.11 and 2,843.40 is: 3,923.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,081.31 : 7,012.11 = 2,843.40 : x
  2. Step 2: Convert to fraction form
    5,081.31/7,012.11 = 2,843.40/x
  3. Step 3: Cross multiply
    5,081.31x = 7,012.11 × 2,843.40
  4. Step 4: Simplify right side
    5,081.31x = 19,938,233.57
  5. Step 5: Solve for x
    x = 19,938,233.57/5,081.31
  6. Step 6: Final answer
    x = 3,923.84

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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.