Home / 2,998.83-4,131.63-2,211.51

Finding the Fourth Proportional to 2,998.83, 4,131.63 and 2,211.51

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Solution

The fourth proportional to 2,998.83, 4,131.63 and 2,211.51 is: 3,046.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,998.83 : 4,131.63 = 2,211.51 : x
  2. Step 2: Convert to fraction form
    2,998.83/4,131.63 = 2,211.51/x
  3. Step 3: Cross multiply
    2,998.83x = 4,131.63 × 2,211.51
  4. Step 4: Simplify right side
    2,998.83x = 9,137,141.06
  5. Step 5: Solve for x
    x = 9,137,141.06/2,998.83
  6. Step 6: Final answer
    x = 3,046.90

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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.