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Finding the Fourth Proportional to 6,807.61, 10,211.49 and 2,127.43

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Solution

The fourth proportional to 6,807.61, 10,211.49 and 2,127.43 is: 3,191.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,807.61 : 10,211.49 = 2,127.43 : x
  2. Step 2: Convert to fraction form
    6,807.61/10,211.49 = 2,127.43/x
  3. Step 3: Cross multiply
    6,807.61x = 10,211.49 × 2,127.43
  4. Step 4: Simplify right side
    6,807.61x = 21,724,230.17
  5. Step 5: Solve for x
    x = 21,724,230.17/6,807.61
  6. Step 6: Final answer
    x = 3,191.17

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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.