Home / 2,961.68-4,087.07-1,617.28

Finding the Fourth Proportional to 2,961.68, 4,087.07 and 1,617.28

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Solution

The fourth proportional to 2,961.68, 4,087.07 and 1,617.28 is: 2,231.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.68 : 4,087.07 = 1,617.28 : x
  2. Step 2: Convert to fraction form
    2,961.68/4,087.07 = 1,617.28/x
  3. Step 3: Cross multiply
    2,961.68x = 4,087.07 × 1,617.28
  4. Step 4: Simplify right side
    2,961.68x = 6,609,936.57
  5. Step 5: Solve for x
    x = 6,609,936.57/2,961.68
  6. Step 6: Final answer
    x = 2,231.82

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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.