Home / 3,087.78-4,261.44-1,761.94

Finding the Fourth Proportional to 3,087.78, 4,261.44 and 1,761.94

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Solution

The fourth proportional to 3,087.78, 4,261.44 and 1,761.94 is: 2,431.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.78 : 4,261.44 = 1,761.94 : x
  2. Step 2: Convert to fraction form
    3,087.78/4,261.44 = 1,761.94/x
  3. Step 3: Cross multiply
    3,087.78x = 4,261.44 × 1,761.94
  4. Step 4: Simplify right side
    3,087.78x = 7,508,401.59
  5. Step 5: Solve for x
    x = 7,508,401.59/3,087.78
  6. Step 6: Final answer
    x = 2,431.65

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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.