Home / 5,205.15-7,179.57-3,187.62

Finding the Fourth Proportional to 5,205.15, 7,179.57 and 3,187.62

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Solution

The fourth proportional to 5,205.15, 7,179.57 and 3,187.62 is: 4,396.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,205.15 : 7,179.57 = 3,187.62 : x
  2. Step 2: Convert to fraction form
    5,205.15/7,179.57 = 3,187.62/x
  3. Step 3: Cross multiply
    5,205.15x = 7,179.57 × 3,187.62
  4. Step 4: Simplify right side
    5,205.15x = 22,885,740.92
  5. Step 5: Solve for x
    x = 22,885,740.92/5,205.15
  6. Step 6: Final answer
    x = 4,396.75

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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.