Home / 4,992.28-7,486.11-2,912.89

Finding the Fourth Proportional to 4,992.28, 7,486.11 and 2,912.89

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Solution

The fourth proportional to 4,992.28, 7,486.11 and 2,912.89 is: 4,367.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,992.28 : 7,486.11 = 2,912.89 : x
  2. Step 2: Convert to fraction form
    4,992.28/7,486.11 = 2,912.89/x
  3. Step 3: Cross multiply
    4,992.28x = 7,486.11 × 2,912.89
  4. Step 4: Simplify right side
    4,992.28x = 21,806,185.13
  5. Step 5: Solve for x
    x = 21,806,185.13/4,992.28
  6. Step 6: Final answer
    x = 4,367.98

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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.