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Finding the Fourth Proportional to 6,811.59, 10,217.34 and 1,881.27

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Solution

The fourth proportional to 6,811.59, 10,217.34 and 1,881.27 is: 2,821.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,811.59 : 10,217.34 = 1,881.27 : x
  2. Step 2: Convert to fraction form
    6,811.59/10,217.34 = 1,881.27/x
  3. Step 3: Cross multiply
    6,811.59x = 10,217.34 × 1,881.27
  4. Step 4: Simplify right side
    6,811.59x = 19,221,575.22
  5. Step 5: Solve for x
    x = 19,221,575.22/6,811.59
  6. Step 6: Final answer
    x = 2,821.89

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1.5x scale

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.