Home / 5,205.92-7,808.82-2,086.70

Finding the Fourth Proportional to 5,205.92, 7,808.82 and 2,086.70

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Solution

The fourth proportional to 5,205.92, 7,808.82 and 2,086.70 is: 3,130.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,205.92 : 7,808.82 = 2,086.70 : x
  2. Step 2: Convert to fraction form
    5,205.92/7,808.82 = 2,086.70/x
  3. Step 3: Cross multiply
    5,205.92x = 7,808.82 × 2,086.70
  4. Step 4: Simplify right side
    5,205.92x = 16,294,625.65
  5. Step 5: Solve for x
    x = 16,294,625.65/5,205.92
  6. Step 6: Final answer
    x = 3,130.02

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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.