Home / 2,578.62-3,558.84-1,917.39

Finding the Fourth Proportional to 2,578.62, 3,558.84 and 1,917.39

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Solution

The fourth proportional to 2,578.62, 3,558.84 and 1,917.39 is: 2,646.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578.62 : 3,558.84 = 1,917.39 : x
  2. Step 2: Convert to fraction form
    2,578.62/3,558.84 = 1,917.39/x
  3. Step 3: Cross multiply
    2,578.62x = 3,558.84 × 1,917.39
  4. Step 4: Simplify right side
    2,578.62x = 6,823,684.23
  5. Step 5: Solve for x
    x = 6,823,684.23/2,578.62
  6. Step 6: Final answer
    x = 2,646.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.