Home / 2,878.94-4,318.26-1,645.57

Finding the Fourth Proportional to 2,878.94, 4,318.26 and 1,645.57

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Solution

The fourth proportional to 2,878.94, 4,318.26 and 1,645.57 is: 2,468.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,878.94 : 4,318.26 = 1,645.57 : x
  2. Step 2: Convert to fraction form
    2,878.94/4,318.26 = 1,645.57/x
  3. Step 3: Cross multiply
    2,878.94x = 4,318.26 × 1,645.57
  4. Step 4: Simplify right side
    2,878.94x = 7,105,983.30
  5. Step 5: Solve for x
    x = 7,105,983.30/2,878.94
  6. Step 6: Final answer
    x = 2,468.26

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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.