Home / 2,961.60-4,087.08-1,635.36

Finding the Fourth Proportional to 2,961.60, 4,087.08 and 1,635.36

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Solution

The fourth proportional to 2,961.60, 4,087.08 and 1,635.36 is: 2,256.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.60 : 4,087.08 = 1,635.36 : x
  2. Step 2: Convert to fraction form
    2,961.60/4,087.08 = 1,635.36/x
  3. Step 3: Cross multiply
    2,961.60x = 4,087.08 × 1,635.36
  4. Step 4: Simplify right side
    2,961.60x = 6,683,847.15
  5. Step 5: Solve for x
    x = 6,683,847.15/2,961.60
  6. Step 6: Final answer
    x = 2,256.84

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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.