Home / 3,112.11-4,643.08-2,998.69

Finding the Fourth Proportional to 3,112.11, 4,643.08 and 2,998.69

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Solution

The fourth proportional to 3,112.11, 4,643.08 and 2,998.69 is: 4,473.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.11 : 4,643.08 = 2,998.69 : x
  2. Step 2: Convert to fraction form
    3,112.11/4,643.08 = 2,998.69/x
  3. Step 3: Cross multiply
    3,112.11x = 4,643.08 × 2,998.69
  4. Step 4: Simplify right side
    3,112.11x = 13,923,138.46
  5. Step 5: Solve for x
    x = 13,923,138.46/3,112.11
  6. Step 6: Final answer
    x = 4,473.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.