Home / 3,441.20-5,155.73-2,821.55

Finding the Fourth Proportional to 3,441.20, 5,155.73 and 2,821.55

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Solution

The fourth proportional to 3,441.20, 5,155.73 and 2,821.55 is: 4,227.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,441.20 : 5,155.73 = 2,821.55 : x
  2. Step 2: Convert to fraction form
    3,441.20/5,155.73 = 2,821.55/x
  3. Step 3: Cross multiply
    3,441.20x = 5,155.73 × 2,821.55
  4. Step 4: Simplify right side
    3,441.20x = 14,547,135.87
  5. Step 5: Solve for x
    x = 14,547,135.87/3,441.20
  6. Step 6: Final answer
    x = 4,227.34

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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.