Home / 2,722.42-3,758.87-2,125.58

Finding the Fourth Proportional to 2,722.42, 3,758.87 and 2,125.58

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Solution

The fourth proportional to 2,722.42, 3,758.87 and 2,125.58 is: 2,934.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,722.42 : 3,758.87 = 2,125.58 : x
  2. Step 2: Convert to fraction form
    2,722.42/3,758.87 = 2,125.58/x
  3. Step 3: Cross multiply
    2,722.42x = 3,758.87 × 2,125.58
  4. Step 4: Simplify right side
    2,722.42x = 7,989,777.66
  5. Step 5: Solve for x
    x = 7,989,777.66/2,722.42
  6. Step 6: Final answer
    x = 2,934.81

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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.