Home / 3,742.20-5,163.89-2,170.13

Finding the Fourth Proportional to 3,742.20, 5,163.89 and 2,170.13

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Solution

The fourth proportional to 3,742.20, 5,163.89 and 2,170.13 is: 2,994.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.20 : 5,163.89 = 2,170.13 : x
  2. Step 2: Convert to fraction form
    3,742.20/5,163.89 = 2,170.13/x
  3. Step 3: Cross multiply
    3,742.20x = 5,163.89 × 2,170.13
  4. Step 4: Simplify right side
    3,742.20x = 11,206,275.94
  5. Step 5: Solve for x
    x = 11,206,275.94/3,742.20
  6. Step 6: Final answer
    x = 2,994.57

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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.