Home / 7,422.87-10,243.47-4,065.75

Finding the Fourth Proportional to 7,422.87, 10,243.47 and 4,065.75

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Solution

The fourth proportional to 7,422.87, 10,243.47 and 4,065.75 is: 5,610.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,422.87 : 10,243.47 = 4,065.75 : x
  2. Step 2: Convert to fraction form
    7,422.87/10,243.47 = 4,065.75/x
  3. Step 3: Cross multiply
    7,422.87x = 10,243.47 × 4,065.75
  4. Step 4: Simplify right side
    7,422.87x = 41,647,388.15
  5. Step 5: Solve for x
    x = 41,647,388.15/7,422.87
  6. Step 6: Final answer
    x = 5,610.69

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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.