Home / 5,711.91-7,880.10-3,473.43

Finding the Fourth Proportional to 5,711.91, 7,880.10 and 3,473.43

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Solution

The fourth proportional to 5,711.91, 7,880.10 and 3,473.43 is: 4,791.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,711.91 : 7,880.10 = 3,473.43 : x
  2. Step 2: Convert to fraction form
    5,711.91/7,880.10 = 3,473.43/x
  3. Step 3: Cross multiply
    5,711.91x = 7,880.10 × 3,473.43
  4. Step 4: Simplify right side
    5,711.91x = 27,370,975.74
  5. Step 5: Solve for x
    x = 27,370,975.74/5,711.91
  6. Step 6: Final answer
    x = 4,791.91

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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.