Home / 3,487.62-4,813.68-2,729.89

Finding the Fourth Proportional to 3,487.62, 4,813.68 and 2,729.89

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Solution

The fourth proportional to 3,487.62, 4,813.68 and 2,729.89 is: 3,767.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.62 : 4,813.68 = 2,729.89 : x
  2. Step 2: Convert to fraction form
    3,487.62/4,813.68 = 2,729.89/x
  3. Step 3: Cross multiply
    3,487.62x = 4,813.68 × 2,729.89
  4. Step 4: Simplify right side
    3,487.62x = 13,140,816.90
  5. Step 5: Solve for x
    x = 13,140,816.90/3,487.62
  6. Step 6: Final answer
    x = 3,767.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.