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Finding the Fourth Proportional to 3,217.36, 4,826.04 and 908.86

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Solution

The fourth proportional to 3,217.36, 4,826.04 and 908.86 is: 1,363.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217.36 : 4,826.04 = 908.86 : x
  2. Step 2: Convert to fraction form
    3,217.36/4,826.04 = 908.86/x
  3. Step 3: Cross multiply
    3,217.36x = 4,826.04 × 908.86
  4. Step 4: Simplify right side
    3,217.36x = 4,386,194.71
  5. Step 5: Solve for x
    x = 4,386,194.71/3,217.36
  6. Step 6: Final answer
    x = 1,363.29

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Similar ratio
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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.