Home / 3,910.45-5,866.34-1,445.28

Finding the Fourth Proportional to 3,910.45, 5,866.34 and 1,445.28

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Solution

The fourth proportional to 3,910.45, 5,866.34 and 1,445.28 is: 2,168.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,910.45 : 5,866.34 = 1,445.28 : x
  2. Step 2: Convert to fraction form
    3,910.45/5,866.34 = 1,445.28/x
  3. Step 3: Cross multiply
    3,910.45x = 5,866.34 × 1,445.28
  4. Step 4: Simplify right side
    3,910.45x = 8,478,503.88
  5. Step 5: Solve for x
    x = 8,478,503.88/3,910.45
  6. Step 6: Final answer
    x = 2,168.17

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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.