Home / 2,964.86-4,091.30-1,638.62

Finding the Fourth Proportional to 2,964.86, 4,091.30 and 1,638.62

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Solution

The fourth proportional to 2,964.86, 4,091.30 and 1,638.62 is: 2,261.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,964.86 : 4,091.30 = 1,638.62 : x
  2. Step 2: Convert to fraction form
    2,964.86/4,091.30 = 1,638.62/x
  3. Step 3: Cross multiply
    2,964.86x = 4,091.30 × 1,638.62
  4. Step 4: Simplify right side
    2,964.86x = 6,704,069.65
  5. Step 5: Solve for x
    x = 6,704,069.65/2,964.86
  6. Step 6: Final answer
    x = 2,261.17

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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.