Home / 6,890.22-10,338.87-3,380.17

Finding the Fourth Proportional to 6,890.22, 10,338.87 and 3,380.17

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Solution

The fourth proportional to 6,890.22, 10,338.87 and 3,380.17 is: 5,071.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,890.22 : 10,338.87 = 3,380.17 : x
  2. Step 2: Convert to fraction form
    6,890.22/10,338.87 = 3,380.17/x
  3. Step 3: Cross multiply
    6,890.22x = 10,338.87 × 3,380.17
  4. Step 4: Simplify right side
    6,890.22x = 34,947,138.21
  5. Step 5: Solve for x
    x = 34,947,138.21/6,890.22
  6. Step 6: Final answer
    x = 5,071.99

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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.