Home / 3,911.88-5,396.54-2,339.66

Finding the Fourth Proportional to 3,911.88, 5,396.54 and 2,339.66

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Solution

The fourth proportional to 3,911.88, 5,396.54 and 2,339.66 is: 3,227.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.88 : 5,396.54 = 2,339.66 : x
  2. Step 2: Convert to fraction form
    3,911.88/5,396.54 = 2,339.66/x
  3. Step 3: Cross multiply
    3,911.88x = 5,396.54 × 2,339.66
  4. Step 4: Simplify right side
    3,911.88x = 12,626,068.78
  5. Step 5: Solve for x
    x = 12,626,068.78/3,911.88
  6. Step 6: Final answer
    x = 3,227.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.