Home / 4,079.30-5,629.44-2,311.47

Finding the Fourth Proportional to 4,079.30, 5,629.44 and 2,311.47

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Solution

The fourth proportional to 4,079.30, 5,629.44 and 2,311.47 is: 3,189.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.30 : 5,629.44 = 2,311.47 : x
  2. Step 2: Convert to fraction form
    4,079.30/5,629.44 = 2,311.47/x
  3. Step 3: Cross multiply
    4,079.30x = 5,629.44 × 2,311.47
  4. Step 4: Simplify right side
    4,079.30x = 13,012,281.68
  5. Step 5: Solve for x
    x = 13,012,281.68/4,079.30
  6. Step 6: Final answer
    x = 3,189.84

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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.