Home / 2,511.61-3,767.41-1,645.72

Finding the Fourth Proportional to 2,511.61, 3,767.41 and 1,645.72

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Solution

The fourth proportional to 2,511.61, 3,767.41 and 1,645.72 is: 2,468.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,511.61 : 3,767.41 = 1,645.72 : x
  2. Step 2: Convert to fraction form
    2,511.61/3,767.41 = 1,645.72/x
  3. Step 3: Cross multiply
    2,511.61x = 3,767.41 × 1,645.72
  4. Step 4: Simplify right side
    2,511.61x = 6,200,094.62
  5. Step 5: Solve for x
    x = 6,200,094.62/2,511.61
  6. Step 6: Final answer
    x = 2,468.58

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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.