Home / 2,486.77-3,431.82-1,367.75

Finding the Fourth Proportional to 2,486.77, 3,431.82 and 1,367.75

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Solution

The fourth proportional to 2,486.77, 3,431.82 and 1,367.75 is: 1,887.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.77 : 3,431.82 = 1,367.75 : x
  2. Step 2: Convert to fraction form
    2,486.77/3,431.82 = 1,367.75/x
  3. Step 3: Cross multiply
    2,486.77x = 3,431.82 × 1,367.75
  4. Step 4: Simplify right side
    2,486.77x = 4,693,871.81
  5. Step 5: Solve for x
    x = 4,693,871.81/2,486.77
  6. Step 6: Final answer
    x = 1,887.54

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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.