Home / 3,162.92-4,360.03-2,278.40

Finding the Fourth Proportional to 3,162.92, 4,360.03 and 2,278.40

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Solution

The fourth proportional to 3,162.92, 4,360.03 and 2,278.40 is: 3,140.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,162.92 : 4,360.03 = 2,278.40 : x
  2. Step 2: Convert to fraction form
    3,162.92/4,360.03 = 2,278.40/x
  3. Step 3: Cross multiply
    3,162.92x = 4,360.03 × 2,278.40
  4. Step 4: Simplify right side
    3,162.92x = 9,933,864.86
  5. Step 5: Solve for x
    x = 9,933,864.86/3,162.92
  6. Step 6: Final answer
    x = 3,140.73

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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.