Home / 3,910.64-5,866-1,313.60

Finding the Fourth Proportional to 3,910.64, 5,866 and 1,313.60

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Solution

The fourth proportional to 3,910.64, 5,866 and 1,313.60 is: 1,970.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,910.64 : 5,866 = 1,313.60 : x
  2. Step 2: Convert to fraction form
    3,910.64/5,866 = 1,313.60/x
  3. Step 3: Cross multiply
    3,910.64x = 5,866 × 1,313.60
  4. Step 4: Simplify right side
    3,910.64x = 7,705,577.60
  5. Step 5: Solve for x
    x = 7,705,577.60/3,910.64
  6. Step 6: Final answer
    x = 1,970.41

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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.