Home / 3,300.12-4,950.19-991.62

Finding the Fourth Proportional to 3,300.12, 4,950.19 and 991.62

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Solution

The fourth proportional to 3,300.12, 4,950.19 and 991.62 is: 1,487.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,300.12 : 4,950.19 = 991.62 : x
  2. Step 2: Convert to fraction form
    3,300.12/4,950.19 = 991.62/x
  3. Step 3: Cross multiply
    3,300.12x = 4,950.19 × 991.62
  4. Step 4: Simplify right side
    3,300.12x = 4,908,691.94
  5. Step 5: Solve for x
    x = 4,908,691.94/3,300.12
  6. Step 6: Final answer
    x = 1,487.43

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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.