Home / 3,391.20-4,680.18-2,065.23

Finding the Fourth Proportional to 3,391.20, 4,680.18 and 2,065.23

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Solution

The fourth proportional to 3,391.20, 4,680.18 and 2,065.23 is: 2,850.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.20 : 4,680.18 = 2,065.23 : x
  2. Step 2: Convert to fraction form
    3,391.20/4,680.18 = 2,065.23/x
  3. Step 3: Cross multiply
    3,391.20x = 4,680.18 × 2,065.23
  4. Step 4: Simplify right side
    3,391.20x = 9,665,648.14
  5. Step 5: Solve for x
    x = 9,665,648.14/3,391.20
  6. Step 6: Final answer
    x = 2,850.21

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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.