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Finding the Fourth Proportional to 3,506.08, 5,259.12 and 908.96

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Solution

The fourth proportional to 3,506.08, 5,259.12 and 908.96 is: 1,363.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,506.08 : 5,259.12 = 908.96 : x
  2. Step 2: Convert to fraction form
    3,506.08/5,259.12 = 908.96/x
  3. Step 3: Cross multiply
    3,506.08x = 5,259.12 × 908.96
  4. Step 4: Simplify right side
    3,506.08x = 4,780,329.72
  5. Step 5: Solve for x
    x = 4,780,329.72/3,506.08
  6. Step 6: Final answer
    x = 1,363.44

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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.