Home / 3,883.35-5,359.28-2,311.23

Finding the Fourth Proportional to 3,883.35, 5,359.28 and 2,311.23

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Solution

The fourth proportional to 3,883.35, 5,359.28 and 2,311.23 is: 3,189.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,883.35 : 5,359.28 = 2,311.23 : x
  2. Step 2: Convert to fraction form
    3,883.35/5,359.28 = 2,311.23/x
  3. Step 3: Cross multiply
    3,883.35x = 5,359.28 × 2,311.23
  4. Step 4: Simplify right side
    3,883.35x = 12,386,517.16
  5. Step 5: Solve for x
    x = 12,386,517.16/3,883.35
  6. Step 6: Final answer
    x = 3,189.65

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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.