Home / 2,711.90-4,068.04-1,326.38

Finding the Fourth Proportional to 2,711.90, 4,068.04 and 1,326.38

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Solution

The fourth proportional to 2,711.90, 4,068.04 and 1,326.38 is: 1,989.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,711.90 : 4,068.04 = 1,326.38 : x
  2. Step 2: Convert to fraction form
    2,711.90/4,068.04 = 1,326.38/x
  3. Step 3: Cross multiply
    2,711.90x = 4,068.04 × 1,326.38
  4. Step 4: Simplify right side
    2,711.90x = 5,395,766.90
  5. Step 5: Solve for x
    x = 5,395,766.90/2,711.90
  6. Step 6: Final answer
    x = 1,989.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.