Home / 2,149.82-3,218.65-1,367.87

Finding the Fourth Proportional to 2,149.82, 3,218.65 and 1,367.87

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Solution

The fourth proportional to 2,149.82, 3,218.65 and 1,367.87 is: 2,047.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,149.82 : 3,218.65 = 1,367.87 : x
  2. Step 2: Convert to fraction form
    2,149.82/3,218.65 = 1,367.87/x
  3. Step 3: Cross multiply
    2,149.82x = 3,218.65 × 1,367.87
  4. Step 4: Simplify right side
    2,149.82x = 4,402,699.40
  5. Step 5: Solve for x
    x = 4,402,699.40/2,149.82
  6. Step 6: Final answer
    x = 2,047.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.