Home / 3,777.55-5,672.40-2,744.80

Finding the Fourth Proportional to 3,777.55, 5,672.40 and 2,744.80

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Solution

The fourth proportional to 3,777.55, 5,672.40 and 2,744.80 is: 4,121.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,777.55 : 5,672.40 = 2,744.80 : x
  2. Step 2: Convert to fraction form
    3,777.55/5,672.40 = 2,744.80/x
  3. Step 3: Cross multiply
    3,777.55x = 5,672.40 × 2,744.80
  4. Step 4: Simplify right side
    3,777.55x = 15,569,603.52
  5. Step 5: Solve for x
    x = 15,569,603.52/3,777.55
  6. Step 6: Final answer
    x = 4,121.61

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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.