Home / 7,080.20-10,620.48-3,958.46

Finding the Fourth Proportional to 7,080.20, 10,620.48 and 3,958.46

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Solution

The fourth proportional to 7,080.20, 10,620.48 and 3,958.46 is: 5,937.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,080.20 : 10,620.48 = 3,958.46 : x
  2. Step 2: Convert to fraction form
    7,080.20/10,620.48 = 3,958.46/x
  3. Step 3: Cross multiply
    7,080.20x = 10,620.48 × 3,958.46
  4. Step 4: Simplify right side
    7,080.20x = 42,040,745.26
  5. Step 5: Solve for x
    x = 42,040,745.26/7,080.20
  6. Step 6: Final answer
    x = 5,937.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.