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Finding the Fourth Proportional to 6,487.48, 9,722.08 and 3,709.99

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Solution

The fourth proportional to 6,487.48, 9,722.08 and 3,709.99 is: 5,559.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,487.48 : 9,722.08 = 3,709.99 : x
  2. Step 2: Convert to fraction form
    6,487.48/9,722.08 = 3,709.99/x
  3. Step 3: Cross multiply
    6,487.48x = 9,722.08 × 3,709.99
  4. Step 4: Simplify right side
    6,487.48x = 36,068,819.58
  5. Step 5: Solve for x
    x = 36,068,819.58/6,487.48
  6. Step 6: Final answer
    x = 5,559.76

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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.