Home / 3,924.67-5,416.41-2,156.62

Finding the Fourth Proportional to 3,924.67, 5,416.41 and 2,156.62

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Solution

The fourth proportional to 3,924.67, 5,416.41 and 2,156.62 is: 2,976.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,924.67 : 5,416.41 = 2,156.62 : x
  2. Step 2: Convert to fraction form
    3,924.67/5,416.41 = 2,156.62/x
  3. Step 3: Cross multiply
    3,924.67x = 5,416.41 × 2,156.62
  4. Step 4: Simplify right side
    3,924.67x = 11,681,138.13
  5. Step 5: Solve for x
    x = 11,681,138.13/3,924.67
  6. Step 6: Final answer
    x = 2,976.34

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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.