Home / 3,911.49-5,867.81-1,137.80

Finding the Fourth Proportional to 3,911.49, 5,867.81 and 1,137.80

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Solution

The fourth proportional to 3,911.49, 5,867.81 and 1,137.80 is: 1,706.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.49 : 5,867.81 = 1,137.80 : x
  2. Step 2: Convert to fraction form
    3,911.49/5,867.81 = 1,137.80/x
  3. Step 3: Cross multiply
    3,911.49x = 5,867.81 × 1,137.80
  4. Step 4: Simplify right side
    3,911.49x = 6,676,388.53
  5. Step 5: Solve for x
    x = 6,676,388.53/3,911.49
  6. Step 6: Final answer
    x = 1,706.87

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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.