Home / 5,087.75-7,021.35-2,850.12

Finding the Fourth Proportional to 5,087.75, 7,021.35 and 2,850.12

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Solution

The fourth proportional to 5,087.75, 7,021.35 and 2,850.12 is: 3,933.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.75 : 7,021.35 = 2,850.12 : x
  2. Step 2: Convert to fraction form
    5,087.75/7,021.35 = 2,850.12/x
  3. Step 3: Cross multiply
    5,087.75x = 7,021.35 × 2,850.12
  4. Step 4: Simplify right side
    5,087.75x = 20,011,690.06
  5. Step 5: Solve for x
    x = 20,011,690.06/5,087.75
  6. Step 6: Final answer
    x = 3,933.31

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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.