Home / 3,911.90-5,866.45-1,137.85

Finding the Fourth Proportional to 3,911.90, 5,866.45 and 1,137.85

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Solution

The fourth proportional to 3,911.90, 5,866.45 and 1,137.85 is: 1,706.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.90 : 5,866.45 = 1,137.85 : x
  2. Step 2: Convert to fraction form
    3,911.90/5,866.45 = 1,137.85/x
  3. Step 3: Cross multiply
    3,911.90x = 5,866.45 × 1,137.85
  4. Step 4: Simplify right side
    3,911.90x = 6,675,122.62
  5. Step 5: Solve for x
    x = 6,675,122.62/3,911.90
  6. Step 6: Final answer
    x = 1,706.37

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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.