Home / 3,845.37-5,306.01-2,166.69

Finding the Fourth Proportional to 3,845.37, 5,306.01 and 2,166.69

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Solution

The fourth proportional to 3,845.37, 5,306.01 and 2,166.69 is: 2,989.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,845.37 : 5,306.01 = 2,166.69 : x
  2. Step 2: Convert to fraction form
    3,845.37/5,306.01 = 2,166.69/x
  3. Step 3: Cross multiply
    3,845.37x = 5,306.01 × 2,166.69
  4. Step 4: Simplify right side
    3,845.37x = 11,496,478.81
  5. Step 5: Solve for x
    x = 11,496,478.81/3,845.37
  6. Step 6: Final answer
    x = 2,989.69

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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.