Home / 5,216.88-7,199.46-2,859.20

Finding the Fourth Proportional to 5,216.88, 7,199.46 and 2,859.20

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Solution

The fourth proportional to 5,216.88, 7,199.46 and 2,859.20 is: 3,945.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216.88 : 7,199.46 = 2,859.20 : x
  2. Step 2: Convert to fraction form
    5,216.88/7,199.46 = 2,859.20/x
  3. Step 3: Cross multiply
    5,216.88x = 7,199.46 × 2,859.20
  4. Step 4: Simplify right side
    5,216.88x = 20,584,696.03
  5. Step 5: Solve for x
    x = 20,584,696.03/5,216.88
  6. Step 6: Final answer
    x = 3,945.79

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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.