Home / 2,645.62-3,963.14-1,260.30

Finding the Fourth Proportional to 2,645.62, 3,963.14 and 1,260.30

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Solution

The fourth proportional to 2,645.62, 3,963.14 and 1,260.30 is: 1,887.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,645.62 : 3,963.14 = 1,260.30 : x
  2. Step 2: Convert to fraction form
    2,645.62/3,963.14 = 1,260.30/x
  3. Step 3: Cross multiply
    2,645.62x = 3,963.14 × 1,260.30
  4. Step 4: Simplify right side
    2,645.62x = 4,994,745.34
  5. Step 5: Solve for x
    x = 4,994,745.34/2,645.62
  6. Step 6: Final answer
    x = 1,887.93

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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.