Home / 3,920.36-5,876.32-1,943.96

Finding the Fourth Proportional to 3,920.36, 5,876.32 and 1,943.96

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Solution

The fourth proportional to 3,920.36, 5,876.32 and 1,943.96 is: 2,913.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,920.36 : 5,876.32 = 1,943.96 : x
  2. Step 2: Convert to fraction form
    3,920.36/5,876.32 = 1,943.96/x
  3. Step 3: Cross multiply
    3,920.36x = 5,876.32 × 1,943.96
  4. Step 4: Simplify right side
    3,920.36x = 11,423,331.03
  5. Step 5: Solve for x
    x = 11,423,331.03/3,920.36
  6. Step 6: Final answer
    x = 2,913.85

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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.