Home / 6,780.46-10,190.13-3,320.14

Finding the Fourth Proportional to 6,780.46, 10,190.13 and 3,320.14

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Solution

The fourth proportional to 6,780.46, 10,190.13 and 3,320.14 is: 4,989.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,780.46 : 10,190.13 = 3,320.14 : x
  2. Step 2: Convert to fraction form
    6,780.46/10,190.13 = 3,320.14/x
  3. Step 3: Cross multiply
    6,780.46x = 10,190.13 × 3,320.14
  4. Step 4: Simplify right side
    6,780.46x = 33,832,658.22
  5. Step 5: Solve for x
    x = 33,832,658.22/6,780.46
  6. Step 6: Final answer
    x = 4,989.73

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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.