Home / 4,079.64-5,629.86-2,311.22

Finding the Fourth Proportional to 4,079.64, 5,629.86 and 2,311.22

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Solution

The fourth proportional to 4,079.64, 5,629.86 and 2,311.22 is: 3,189.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.64 : 5,629.86 = 2,311.22 : x
  2. Step 2: Convert to fraction form
    4,079.64/5,629.86 = 2,311.22/x
  3. Step 3: Cross multiply
    4,079.64x = 5,629.86 × 2,311.22
  4. Step 4: Simplify right side
    4,079.64x = 13,011,845.03
  5. Step 5: Solve for x
    x = 13,011,845.03/4,079.64
  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.