Home / 7,222.75-9,967.41-4,078.93

Finding the Fourth Proportional to 7,222.75, 9,967.41 and 4,078.93

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Solution

The fourth proportional to 7,222.75, 9,967.41 and 4,078.93 is: 5,628.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,222.75 : 9,967.41 = 4,078.93 : x
  2. Step 2: Convert to fraction form
    7,222.75/9,967.41 = 4,078.93/x
  3. Step 3: Cross multiply
    7,222.75x = 9,967.41 × 4,078.93
  4. Step 4: Simplify right side
    7,222.75x = 40,656,367.67
  5. Step 5: Solve for x
    x = 40,656,367.67/7,222.75
  6. Step 6: Final answer
    x = 5,628.93

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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.