Home / 5,106.82-7,660.65-2,185.15

Finding the Fourth Proportional to 5,106.82, 7,660.65 and 2,185.15

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Solution

The fourth proportional to 5,106.82, 7,660.65 and 2,185.15 is: 3,277.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,106.82 : 7,660.65 = 2,185.15 : x
  2. Step 2: Convert to fraction form
    5,106.82/7,660.65 = 2,185.15/x
  3. Step 3: Cross multiply
    5,106.82x = 7,660.65 × 2,185.15
  4. Step 4: Simplify right side
    5,106.82x = 16,739,669.35
  5. Step 5: Solve for x
    x = 16,739,669.35/5,106.82
  6. Step 6: Final answer
    x = 3,277.90

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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.