Home / 3,119.72-4,305.20-1,793.67

Finding the Fourth Proportional to 3,119.72, 4,305.20 and 1,793.67

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Solution

The fourth proportional to 3,119.72, 4,305.20 and 1,793.67 is: 2,475.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.72 : 4,305.20 = 1,793.67 : x
  2. Step 2: Convert to fraction form
    3,119.72/4,305.20 = 1,793.67/x
  3. Step 3: Cross multiply
    3,119.72x = 4,305.20 × 1,793.67
  4. Step 4: Simplify right side
    3,119.72x = 7,722,108.08
  5. Step 5: Solve for x
    x = 7,722,108.08/3,119.72
  6. Step 6: Final answer
    x = 2,475.26

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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.