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Finding the Fourth Proportional to 6,441.55, 9,665.96 and 3,479.96

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Solution

The fourth proportional to 6,441.55, 9,665.96 and 3,479.96 is: 5,221.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,441.55 : 9,665.96 = 3,479.96 : x
  2. Step 2: Convert to fraction form
    6,441.55/9,665.96 = 3,479.96/x
  3. Step 3: Cross multiply
    6,441.55x = 9,665.96 × 3,479.96
  4. Step 4: Simplify right side
    6,441.55x = 33,637,154.16
  5. Step 5: Solve for x
    x = 33,637,154.16/6,441.55
  6. Step 6: Final answer
    x = 5,221.90

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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.