Home / 2,680.61-4,012.90-2,399.04

Finding the Fourth Proportional to 2,680.61, 4,012.90 and 2,399.04

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Solution

The fourth proportional to 2,680.61, 4,012.90 and 2,399.04 is: 3,591.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680.61 : 4,012.90 = 2,399.04 : x
  2. Step 2: Convert to fraction form
    2,680.61/4,012.90 = 2,399.04/x
  3. Step 3: Cross multiply
    2,680.61x = 4,012.90 × 2,399.04
  4. Step 4: Simplify right side
    2,680.61x = 9,627,101.62
  5. Step 5: Solve for x
    x = 9,627,101.62/2,680.61
  6. Step 6: Final answer
    x = 3,591.39

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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.