Home / 3,943.95-5,910.58-2,188.86

Finding the Fourth Proportional to 3,943.95, 5,910.58 and 2,188.86

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Solution

The fourth proportional to 3,943.95, 5,910.58 and 2,188.86 is: 3,280.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.95 : 5,910.58 = 2,188.86 : x
  2. Step 2: Convert to fraction form
    3,943.95/5,910.58 = 2,188.86/x
  3. Step 3: Cross multiply
    3,943.95x = 5,910.58 × 2,188.86
  4. Step 4: Simplify right side
    3,943.95x = 12,937,432.14
  5. Step 5: Solve for x
    x = 12,937,432.14/3,943.95
  6. Step 6: Final answer
    x = 3,280.32

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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.