Home / 5,218.88-7,202.07-2,861.06

Finding the Fourth Proportional to 5,218.88, 7,202.07 and 2,861.06

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Solution

The fourth proportional to 5,218.88, 7,202.07 and 2,861.06 is: 3,948.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.88 : 7,202.07 = 2,861.06 : x
  2. Step 2: Convert to fraction form
    5,218.88/7,202.07 = 2,861.06/x
  3. Step 3: Cross multiply
    5,218.88x = 7,202.07 × 2,861.06
  4. Step 4: Simplify right side
    5,218.88x = 20,605,518.38
  5. Step 5: Solve for x
    x = 20,605,518.38/5,218.88
  6. Step 6: Final answer
    x = 3,948.27

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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.