Home / 2,961.74-4,087.20-1,635.41

Finding the Fourth Proportional to 2,961.74, 4,087.20 and 1,635.41

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Solution

The fourth proportional to 2,961.74, 4,087.20 and 1,635.41 is: 2,256.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.74 : 4,087.20 = 1,635.41 : x
  2. Step 2: Convert to fraction form
    2,961.74/4,087.20 = 1,635.41/x
  3. Step 3: Cross multiply
    2,961.74x = 4,087.20 × 1,635.41
  4. Step 4: Simplify right side
    2,961.74x = 6,684,247.75
  5. Step 5: Solve for x
    x = 6,684,247.75/2,961.74
  6. Step 6: Final answer
    x = 2,256.87

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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.