Home / 6,891.78-10,338.36-2,210.62

Finding the Fourth Proportional to 6,891.78, 10,338.36 and 2,210.62

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Solution

The fourth proportional to 6,891.78, 10,338.36 and 2,210.62 is: 3,316.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,891.78 : 10,338.36 = 2,210.62 : x
  2. Step 2: Convert to fraction form
    6,891.78/10,338.36 = 2,210.62/x
  3. Step 3: Cross multiply
    6,891.78x = 10,338.36 × 2,210.62
  4. Step 4: Simplify right side
    6,891.78x = 22,854,185.38
  5. Step 5: Solve for x
    x = 22,854,185.38/6,891.78
  6. Step 6: Final answer
    x = 3,316.15

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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.