Home / 3,119.89-4,305.88-1,793.57

Finding the Fourth Proportional to 3,119.89, 4,305.88 and 1,793.57

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Solution

The fourth proportional to 3,119.89, 4,305.88 and 1,793.57 is: 2,475.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.89 : 4,305.88 = 1,793.57 : x
  2. Step 2: Convert to fraction form
    3,119.89/4,305.88 = 1,793.57/x
  3. Step 3: Cross multiply
    3,119.89x = 4,305.88 × 1,793.57
  4. Step 4: Simplify right side
    3,119.89x = 7,722,895.06
  5. Step 5: Solve for x
    x = 7,722,895.06/3,119.89
  6. Step 6: Final answer
    x = 2,475.37

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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.