Home / 2,578.26-3,869.93-1,346.66

Finding the Fourth Proportional to 2,578.26, 3,869.93 and 1,346.66

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Solution

The fourth proportional to 2,578.26, 3,869.93 and 1,346.66 is: 2,021.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578.26 : 3,869.93 = 1,346.66 : x
  2. Step 2: Convert to fraction form
    2,578.26/3,869.93 = 1,346.66/x
  3. Step 3: Cross multiply
    2,578.26x = 3,869.93 × 1,346.66
  4. Step 4: Simplify right side
    2,578.26x = 5,211,479.93
  5. Step 5: Solve for x
    x = 5,211,479.93/2,578.26
  6. Step 6: Final answer
    x = 2,021.32

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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.