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Finding the Fourth Proportional to 5,871.56, 8,804.78 and 2,221

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Solution

The fourth proportional to 5,871.56, 8,804.78 and 2,221 is: 3,330.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,871.56 : 8,804.78 = 2,221 : x
  2. Step 2: Convert to fraction form
    5,871.56/8,804.78 = 2,221/x
  3. Step 3: Cross multiply
    5,871.56x = 8,804.78 × 2,221
  4. Step 4: Simplify right side
    5,871.56x = 19,555,416.38
  5. Step 5: Solve for x
    x = 19,555,416.38/5,871.56
  6. Step 6: Final answer
    x = 3,330.53

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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.