Home / 3,911.32-5,865.90-1,962.64

Finding the Fourth Proportional to 3,911.32, 5,865.90 and 1,962.64

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Solution

The fourth proportional to 3,911.32, 5,865.90 and 1,962.64 is: 2,943.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.32 : 5,865.90 = 1,962.64 : x
  2. Step 2: Convert to fraction form
    3,911.32/5,865.90 = 1,962.64/x
  3. Step 3: Cross multiply
    3,911.32x = 5,865.90 × 1,962.64
  4. Step 4: Simplify right side
    3,911.32x = 11,512,649.98
  5. Step 5: Solve for x
    x = 11,512,649.98/3,911.32
  6. Step 6: Final answer
    x = 2,943.42

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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.