Home / 4,079.97-5,630.40-2,311.56

Finding the Fourth Proportional to 4,079.97, 5,630.40 and 2,311.56

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Solution

The fourth proportional to 4,079.97, 5,630.40 and 2,311.56 is: 3,189.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.97 : 5,630.40 = 2,311.56 : x
  2. Step 2: Convert to fraction form
    4,079.97/5,630.40 = 2,311.56/x
  3. Step 3: Cross multiply
    4,079.97x = 5,630.40 × 2,311.56
  4. Step 4: Simplify right side
    4,079.97x = 13,015,007.42
  5. Step 5: Solve for x
    x = 13,015,007.42/4,079.97
  6. Step 6: Final answer
    x = 3,189.98

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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.