Home / 3,119.86-4,305.18-1,793.62

Finding the Fourth Proportional to 3,119.86, 4,305.18 and 1,793.62

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Solution

The fourth proportional to 3,119.86, 4,305.18 and 1,793.62 is: 2,475.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.86 : 4,305.18 = 1,793.62 : x
  2. Step 2: Convert to fraction form
    3,119.86/4,305.18 = 1,793.62/x
  3. Step 3: Cross multiply
    3,119.86x = 4,305.18 × 1,793.62
  4. Step 4: Simplify right side
    3,119.86x = 7,721,856.95
  5. Step 5: Solve for x
    x = 7,721,856.95/3,119.86
  6. Step 6: Final answer
    x = 2,475.07

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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.