Home / 4,079.46-5,629.56-2,311.50

Finding the Fourth Proportional to 4,079.46, 5,629.56 and 2,311.50

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Solution

The fourth proportional to 4,079.46, 5,629.56 and 2,311.50 is: 3,189.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.46 : 5,629.56 = 2,311.50 : x
  2. Step 2: Convert to fraction form
    4,079.46/5,629.56 = 2,311.50/x
  3. Step 3: Cross multiply
    4,079.46x = 5,629.56 × 2,311.50
  4. Step 4: Simplify right side
    4,079.46x = 13,012,727.94
  5. Step 5: Solve for x
    x = 13,012,727.94/4,079.46
  6. Step 6: Final answer
    x = 3,189.82

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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.