Home / 4,079.71-5,629.83-2,311.27

Finding the Fourth Proportional to 4,079.71, 5,629.83 and 2,311.27

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Solution

The fourth proportional to 4,079.71, 5,629.83 and 2,311.27 is: 3,189.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.71 : 5,629.83 = 2,311.27 : x
  2. Step 2: Convert to fraction form
    4,079.71/5,629.83 = 2,311.27/x
  3. Step 3: Cross multiply
    4,079.71x = 5,629.83 × 2,311.27
  4. Step 4: Simplify right side
    4,079.71x = 13,012,057.18
  5. Step 5: Solve for x
    x = 13,012,057.18/4,079.71
  6. Step 6: Final answer
    x = 3,189.46

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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.