Home / 3,845.17-5,306.45-2,166.60

Finding the Fourth Proportional to 3,845.17, 5,306.45 and 2,166.60

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Solution

The fourth proportional to 3,845.17, 5,306.45 and 2,166.60 is: 2,989.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,845.17 : 5,306.45 = 2,166.60 : x
  2. Step 2: Convert to fraction form
    3,845.17/5,306.45 = 2,166.60/x
  3. Step 3: Cross multiply
    3,845.17x = 5,306.45 × 2,166.60
  4. Step 4: Simplify right side
    3,845.17x = 11,496,954.57
  5. Step 5: Solve for x
    x = 11,496,954.57/3,845.17
  6. Step 6: Final answer
    x = 2,989.97

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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.