Home / 3,487.23-5,220.97-3,158.77

Finding the Fourth Proportional to 3,487.23, 5,220.97 and 3,158.77

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Solution

The fourth proportional to 3,487.23, 5,220.97 and 3,158.77 is: 4,729.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.23 : 5,220.97 = 3,158.77 : x
  2. Step 2: Convert to fraction form
    3,487.23/5,220.97 = 3,158.77/x
  3. Step 3: Cross multiply
    3,487.23x = 5,220.97 × 3,158.77
  4. Step 4: Simplify right side
    3,487.23x = 16,491,843.41
  5. Step 5: Solve for x
    x = 16,491,843.41/3,487.23
  6. Step 6: Final answer
    x = 4,729.21

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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.