Home / 3,190.73-4,401.78-2,127.46

Finding the Fourth Proportional to 3,190.73, 4,401.78 and 2,127.46

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Solution

The fourth proportional to 3,190.73, 4,401.78 and 2,127.46 is: 2,934.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.73 : 4,401.78 = 2,127.46 : x
  2. Step 2: Convert to fraction form
    3,190.73/4,401.78 = 2,127.46/x
  3. Step 3: Cross multiply
    3,190.73x = 4,401.78 × 2,127.46
  4. Step 4: Simplify right side
    3,190.73x = 9,364,588.87
  5. Step 5: Solve for x
    x = 9,364,588.87/3,190.73
  6. Step 6: Final answer
    x = 2,934.94

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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.