Home / 3,845.10-5,306.67-2,166.54

Finding the Fourth Proportional to 3,845.10, 5,306.67 and 2,166.54

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Solution

The fourth proportional to 3,845.10, 5,306.67 and 2,166.54 is: 2,990.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,845.10 : 5,306.67 = 2,166.54 : x
  2. Step 2: Convert to fraction form
    3,845.10/5,306.67 = 2,166.54/x
  3. Step 3: Cross multiply
    3,845.10x = 5,306.67 × 2,166.54
  4. Step 4: Simplify right side
    3,845.10x = 11,497,112.82
  5. Step 5: Solve for x
    x = 11,497,112.82/3,845.10
  6. Step 6: Final answer
    x = 2,990.07

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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.