Home / 2,578.29-3,866.14-1,262.15

Finding the Fourth Proportional to 2,578.29, 3,866.14 and 1,262.15

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Solution

The fourth proportional to 2,578.29, 3,866.14 and 1,262.15 is: 1,892.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578.29 : 3,866.14 = 1,262.15 : x
  2. Step 2: Convert to fraction form
    2,578.29/3,866.14 = 1,262.15/x
  3. Step 3: Cross multiply
    2,578.29x = 3,866.14 × 1,262.15
  4. Step 4: Simplify right side
    2,578.29x = 4,879,622.96
  5. Step 5: Solve for x
    x = 4,879,622.96/2,578.29
  6. Step 6: Final answer
    x = 1,892.58

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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.