Home / 2,734.84-4,105.72-2,278.20

Finding the Fourth Proportional to 2,734.84, 4,105.72 and 2,278.20

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Solution

The fourth proportional to 2,734.84, 4,105.72 and 2,278.20 is: 3,420.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,734.84 : 4,105.72 = 2,278.20 : x
  2. Step 2: Convert to fraction form
    2,734.84/4,105.72 = 2,278.20/x
  3. Step 3: Cross multiply
    2,734.84x = 4,105.72 × 2,278.20
  4. Step 4: Simplify right side
    2,734.84x = 9,353,651.30
  5. Step 5: Solve for x
    x = 9,353,651.30/2,734.84
  6. Step 6: Final answer
    x = 3,420.18

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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.