Home / 2,680.26-4,020.42-2,217.20

Finding the Fourth Proportional to 2,680.26, 4,020.42 and 2,217.20

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Solution

The fourth proportional to 2,680.26, 4,020.42 and 2,217.20 is: 3,325.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680.26 : 4,020.42 = 2,217.20 : x
  2. Step 2: Convert to fraction form
    2,680.26/4,020.42 = 2,217.20/x
  3. Step 3: Cross multiply
    2,680.26x = 4,020.42 × 2,217.20
  4. Step 4: Simplify right side
    2,680.26x = 8,914,075.22
  5. Step 5: Solve for x
    x = 8,914,075.22/2,680.26
  6. Step 6: Final answer
    x = 3,325.82

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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.