Home / 7,040.89-9,716.46-3,854.22

Finding the Fourth Proportional to 7,040.89, 9,716.46 and 3,854.22

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Solution

The fourth proportional to 7,040.89, 9,716.46 and 3,854.22 is: 5,318.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,040.89 : 9,716.46 = 3,854.22 : x
  2. Step 2: Convert to fraction form
    7,040.89/9,716.46 = 3,854.22/x
  3. Step 3: Cross multiply
    7,040.89x = 9,716.46 × 3,854.22
  4. Step 4: Simplify right side
    7,040.89x = 37,449,323.57
  5. Step 5: Solve for x
    x = 37,449,323.57/7,040.89
  6. Step 6: Final answer
    x = 5,318.83

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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.