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Finding the Fourth Proportional to 3,217.44, 4,460.88 and 3,109.44

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Solution

The fourth proportional to 3,217.44, 4,460.88 and 3,109.44 is: 4,311.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217.44 : 4,460.88 = 3,109.44 : x
  2. Step 2: Convert to fraction form
    3,217.44/4,460.88 = 3,109.44/x
  3. Step 3: Cross multiply
    3,217.44x = 4,460.88 × 3,109.44
  4. Step 4: Simplify right side
    3,217.44x = 13,870,838.71
  5. Step 5: Solve for x
    x = 13,870,838.71/3,217.44
  6. Step 6: Final answer
    x = 4,311.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.