Home / 2,968.11-4,095.90-1,641.78

Finding the Fourth Proportional to 2,968.11, 4,095.90 and 1,641.78

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Solution

The fourth proportional to 2,968.11, 4,095.90 and 1,641.78 is: 2,265.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,968.11 : 4,095.90 = 1,641.78 : x
  2. Step 2: Convert to fraction form
    2,968.11/4,095.90 = 1,641.78/x
  3. Step 3: Cross multiply
    2,968.11x = 4,095.90 × 1,641.78
  4. Step 4: Simplify right side
    2,968.11x = 6,724,566.70
  5. Step 5: Solve for x
    x = 6,724,566.70/2,968.11
  6. Step 6: Final answer
    x = 2,265.61

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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.