Home / 2,578.58-3,874.04-1,655.94

Finding the Fourth Proportional to 2,578.58, 3,874.04 and 1,655.94

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Solution

The fourth proportional to 2,578.58, 3,874.04 and 1,655.94 is: 2,487.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578.58 : 3,874.04 = 1,655.94 : x
  2. Step 2: Convert to fraction form
    2,578.58/3,874.04 = 1,655.94/x
  3. Step 3: Cross multiply
    2,578.58x = 3,874.04 × 1,655.94
  4. Step 4: Simplify right side
    2,578.58x = 6,415,177.80
  5. Step 5: Solve for x
    x = 6,415,177.80/2,578.58
  6. Step 6: Final answer
    x = 2,487.87

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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.