Home / 3,726.20-5,608.22-2,806.40

Finding the Fourth Proportional to 3,726.20, 5,608.22 and 2,806.40

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Solution

The fourth proportional to 3,726.20, 5,608.22 and 2,806.40 is: 4,223.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,726.20 : 5,608.22 = 2,806.40 : x
  2. Step 2: Convert to fraction form
    3,726.20/5,608.22 = 2,806.40/x
  3. Step 3: Cross multiply
    3,726.20x = 5,608.22 × 2,806.40
  4. Step 4: Simplify right side
    3,726.20x = 15,738,908.61
  5. Step 5: Solve for x
    x = 15,738,908.61/3,726.20
  6. Step 6: Final answer
    x = 4,223.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.