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Finding the Fourth Proportional to 6,221.38, 8,584 and 3,532

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Solution

The fourth proportional to 6,221.38, 8,584 and 3,532 is: 4,873.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,221.38 : 8,584 = 3,532 : x
  2. Step 2: Convert to fraction form
    6,221.38/8,584 = 3,532/x
  3. Step 3: Cross multiply
    6,221.38x = 8,584 × 3,532
  4. Step 4: Simplify right side
    6,221.38x = 30,318,688
  5. Step 5: Solve for x
    x = 30,318,688/6,221.38
  6. Step 6: Final answer
    x = 4,873.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.