Home / 2,998.40-4,141.82-2,718.95

Finding the Fourth Proportional to 2,998.40, 4,141.82 and 2,718.95

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Solution

The fourth proportional to 2,998.40, 4,141.82 and 2,718.95 is: 3,755.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,998.40 : 4,141.82 = 2,718.95 : x
  2. Step 2: Convert to fraction form
    2,998.40/4,141.82 = 2,718.95/x
  3. Step 3: Cross multiply
    2,998.40x = 4,141.82 × 2,718.95
  4. Step 4: Simplify right side
    2,998.40x = 11,261,401.49
  5. Step 5: Solve for x
    x = 11,261,401.49/2,998.40
  6. Step 6: Final answer
    x = 3,755.80

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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.