Home / 2,722.20-3,752.90-2,445.42

Finding the Fourth Proportional to 2,722.20, 3,752.90 and 2,445.42

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Solution

The fourth proportional to 2,722.20, 3,752.90 and 2,445.42 is: 3,371.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,722.20 : 3,752.90 = 2,445.42 : x
  2. Step 2: Convert to fraction form
    2,722.20/3,752.90 = 2,445.42/x
  3. Step 3: Cross multiply
    2,722.20x = 3,752.90 × 2,445.42
  4. Step 4: Simplify right side
    2,722.20x = 9,177,416.72
  5. Step 5: Solve for x
    x = 9,177,416.72/2,722.20
  6. Step 6: Final answer
    x = 3,371.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.