Home / 6,890.87-10,335.74-2,209.62

Finding the Fourth Proportional to 6,890.87, 10,335.74 and 2,209.62

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Solution

The fourth proportional to 6,890.87, 10,335.74 and 2,209.62 is: 3,314.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,890.87 : 10,335.74 = 2,209.62 : x
  2. Step 2: Convert to fraction form
    6,890.87/10,335.74 = 2,209.62/x
  3. Step 3: Cross multiply
    6,890.87x = 10,335.74 × 2,209.62
  4. Step 4: Simplify right side
    6,890.87x = 22,838,057.82
  5. Step 5: Solve for x
    x = 22,838,057.82/6,890.87
  6. Step 6: Final answer
    x = 3,314.25

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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.