Home / 2,961.78-4,087.22-1,635.51

Finding the Fourth Proportional to 2,961.78, 4,087.22 and 1,635.51

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Solution

The fourth proportional to 2,961.78, 4,087.22 and 1,635.51 is: 2,256.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.78 : 4,087.22 = 1,635.51 : x
  2. Step 2: Convert to fraction form
    2,961.78/4,087.22 = 1,635.51/x
  3. Step 3: Cross multiply
    2,961.78x = 4,087.22 × 1,635.51
  4. Step 4: Simplify right side
    2,961.78x = 6,684,689.18
  5. Step 5: Solve for x
    x = 6,684,689.18/2,961.78
  6. Step 6: Final answer
    x = 2,256.98

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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.