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Finding the Fourth Proportional to 5,807.27, 8,711.99 and 1,911.95

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Solution

The fourth proportional to 5,807.27, 8,711.99 and 1,911.95 is: 2,868.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,807.27 : 8,711.99 = 1,911.95 : x
  2. Step 2: Convert to fraction form
    5,807.27/8,711.99 = 1,911.95/x
  3. Step 3: Cross multiply
    5,807.27x = 8,711.99 × 1,911.95
  4. Step 4: Simplify right side
    5,807.27x = 16,656,879.72
  5. Step 5: Solve for x
    x = 16,656,879.72/5,807.27
  6. Step 6: Final answer
    x = 2,868.28

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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.