Home / 2,964.72-4,091.25-1,638.35

Finding the Fourth Proportional to 2,964.72, 4,091.25 and 1,638.35

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Solution

The fourth proportional to 2,964.72, 4,091.25 and 1,638.35 is: 2,260.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,964.72 : 4,091.25 = 1,638.35 : x
  2. Step 2: Convert to fraction form
    2,964.72/4,091.25 = 1,638.35/x
  3. Step 3: Cross multiply
    2,964.72x = 4,091.25 × 1,638.35
  4. Step 4: Simplify right side
    2,964.72x = 6,702,878.98
  5. Step 5: Solve for x
    x = 6,702,878.98/2,964.72
  6. Step 6: Final answer
    x = 2,260.88

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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.