Home / 3,845.03-5,306.46-2,166.76

Finding the Fourth Proportional to 3,845.03, 5,306.46 and 2,166.76

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Solution

The fourth proportional to 3,845.03, 5,306.46 and 2,166.76 is: 2,990.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,845.03 : 5,306.46 = 2,166.76 : x
  2. Step 2: Convert to fraction form
    3,845.03/5,306.46 = 2,166.76/x
  3. Step 3: Cross multiply
    3,845.03x = 5,306.46 × 2,166.76
  4. Step 4: Simplify right side
    3,845.03x = 11,497,823.78
  5. Step 5: Solve for x
    x = 11,497,823.78/3,845.03
  6. Step 6: Final answer
    x = 2,990.31

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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.