Home / 4,190.47-5,781.85-2,511.61

Finding the Fourth Proportional to 4,190.47, 5,781.85 and 2,511.61

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Solution

The fourth proportional to 4,190.47, 5,781.85 and 2,511.61 is: 3,465.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,190.47 : 5,781.85 = 2,511.61 : x
  2. Step 2: Convert to fraction form
    4,190.47/5,781.85 = 2,511.61/x
  3. Step 3: Cross multiply
    4,190.47x = 5,781.85 × 2,511.61
  4. Step 4: Simplify right side
    4,190.47x = 14,521,731.54
  5. Step 5: Solve for x
    x = 14,521,731.54/4,190.47
  6. Step 6: Final answer
    x = 3,465.42

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1.5x scale

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.