Home / 2,936.18-4,047.39-2,189

Finding the Fourth Proportional to 2,936.18, 4,047.39 and 2,189

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Solution

The fourth proportional to 2,936.18, 4,047.39 and 2,189 is: 3,017.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,936.18 : 4,047.39 = 2,189 : x
  2. Step 2: Convert to fraction form
    2,936.18/4,047.39 = 2,189/x
  3. Step 3: Cross multiply
    2,936.18x = 4,047.39 × 2,189
  4. Step 4: Simplify right side
    2,936.18x = 8,859,736.71
  5. Step 5: Solve for x
    x = 8,859,736.71/2,936.18
  6. Step 6: Final answer
    x = 3,017.44

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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.