Home / 3,161.25-4,738.17-2,378.74

Finding the Fourth Proportional to 3,161.25, 4,738.17 and 2,378.74

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Solution

The fourth proportional to 3,161.25, 4,738.17 and 2,378.74 is: 3,565.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.25 : 4,738.17 = 2,378.74 : x
  2. Step 2: Convert to fraction form
    3,161.25/4,738.17 = 2,378.74/x
  3. Step 3: Cross multiply
    3,161.25x = 4,738.17 × 2,378.74
  4. Step 4: Simplify right side
    3,161.25x = 11,270,850.81
  5. Step 5: Solve for x
    x = 11,270,850.81/3,161.25
  6. Step 6: Final answer
    x = 3,565.32

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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.