Home / 2,734.20-3,722.40-2,709.90

Finding the Fourth Proportional to 2,734.20, 3,722.40 and 2,709.90

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Solution

The fourth proportional to 2,734.20, 3,722.40 and 2,709.90 is: 3,689.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,734.20 : 3,722.40 = 2,709.90 : x
  2. Step 2: Convert to fraction form
    2,734.20/3,722.40 = 2,709.90/x
  3. Step 3: Cross multiply
    2,734.20x = 3,722.40 × 2,709.90
  4. Step 4: Simplify right side
    2,734.20x = 10,087,331.76
  5. Step 5: Solve for x
    x = 10,087,331.76/2,734.20
  6. Step 6: Final answer
    x = 3,689.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.