Home / 2,964.90-4,091.82-1,638.88

Finding the Fourth Proportional to 2,964.90, 4,091.82 and 1,638.88

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Solution

The fourth proportional to 2,964.90, 4,091.82 and 1,638.88 is: 2,261.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,964.90 : 4,091.82 = 1,638.88 : x
  2. Step 2: Convert to fraction form
    2,964.90/4,091.82 = 1,638.88/x
  3. Step 3: Cross multiply
    2,964.90x = 4,091.82 × 1,638.88
  4. Step 4: Simplify right side
    2,964.90x = 6,706,008.60
  5. Step 5: Solve for x
    x = 6,706,008.60/2,964.90
  6. Step 6: Final answer
    x = 2,261.80

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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.