Home / 3,834.61-5,291.73-2,156.05

Finding the Fourth Proportional to 3,834.61, 5,291.73 and 2,156.05

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Solution

The fourth proportional to 3,834.61, 5,291.73 and 2,156.05 is: 2,975.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,834.61 : 5,291.73 = 2,156.05 : x
  2. Step 2: Convert to fraction form
    3,834.61/5,291.73 = 2,156.05/x
  3. Step 3: Cross multiply
    3,834.61x = 5,291.73 × 2,156.05
  4. Step 4: Simplify right side
    3,834.61x = 11,409,234.47
  5. Step 5: Solve for x
    x = 11,409,234.47/3,834.61
  6. Step 6: Final answer
    x = 2,975.33

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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.