Home / 2,802.80-4,205.55-2,144.45

Finding the Fourth Proportional to 2,802.80, 4,205.55 and 2,144.45

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Solution

The fourth proportional to 2,802.80, 4,205.55 and 2,144.45 is: 3,217.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.80 : 4,205.55 = 2,144.45 : x
  2. Step 2: Convert to fraction form
    2,802.80/4,205.55 = 2,144.45/x
  3. Step 3: Cross multiply
    2,802.80x = 4,205.55 × 2,144.45
  4. Step 4: Simplify right side
    2,802.80x = 9,018,591.70
  5. Step 5: Solve for x
    x = 9,018,591.70/2,802.80
  6. Step 6: Final answer
    x = 3,217.71

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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.