Home / 3,910.88-5,866.80-1,314.08

Finding the Fourth Proportional to 3,910.88, 5,866.80 and 1,314.08

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Solution

The fourth proportional to 3,910.88, 5,866.80 and 1,314.08 is: 1,971.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,910.88 : 5,866.80 = 1,314.08 : x
  2. Step 2: Convert to fraction form
    3,910.88/5,866.80 = 1,314.08/x
  3. Step 3: Cross multiply
    3,910.88x = 5,866.80 × 1,314.08
  4. Step 4: Simplify right side
    3,910.88x = 7,709,444.54
  5. Step 5: Solve for x
    x = 7,709,444.54/3,910.88
  6. Step 6: Final answer
    x = 1,971.28

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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.