Home / 3,511.86-5,265.15-2,124.92

Finding the Fourth Proportional to 3,511.86, 5,265.15 and 2,124.92

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Solution

The fourth proportional to 3,511.86, 5,265.15 and 2,124.92 is: 3,185.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.86 : 5,265.15 = 2,124.92 : x
  2. Step 2: Convert to fraction form
    3,511.86/5,265.15 = 2,124.92/x
  3. Step 3: Cross multiply
    3,511.86x = 5,265.15 × 2,124.92
  4. Step 4: Simplify right side
    3,511.86x = 11,187,996.21
  5. Step 5: Solve for x
    x = 11,187,996.21/3,511.86
  6. Step 6: Final answer
    x = 3,185.78

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1.5x scale

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.