Home / 7,808.49-11,711.61-2,543.99

Finding the Fourth Proportional to 7,808.49, 11,711.61 and 2,543.99

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Solution

The fourth proportional to 7,808.49, 11,711.61 and 2,543.99 is: 3,815.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,808.49 : 11,711.61 = 2,543.99 : x
  2. Step 2: Convert to fraction form
    7,808.49/11,711.61 = 2,543.99/x
  3. Step 3: Cross multiply
    7,808.49x = 11,711.61 × 2,543.99
  4. Step 4: Simplify right side
    7,808.49x = 29,794,160.17
  5. Step 5: Solve for x
    x = 29,794,160.17/7,808.49
  6. Step 6: Final answer
    x = 3,815.61

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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.