Home / 6,519.12-9,778.68-1,902.12

Finding the Fourth Proportional to 6,519.12, 9,778.68 and 1,902.12

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Solution

The fourth proportional to 6,519.12, 9,778.68 and 1,902.12 is: 2,853.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,519.12 : 9,778.68 = 1,902.12 : x
  2. Step 2: Convert to fraction form
    6,519.12/9,778.68 = 1,902.12/x
  3. Step 3: Cross multiply
    6,519.12x = 9,778.68 × 1,902.12
  4. Step 4: Simplify right side
    6,519.12x = 18,600,222.80
  5. Step 5: Solve for x
    x = 18,600,222.80/6,519.12
  6. Step 6: Final answer
    x = 2,853.18

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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.