Home / 3,840.46-5,299.92-2,162.26

Finding the Fourth Proportional to 3,840.46, 5,299.92 and 2,162.26

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Solution

The fourth proportional to 3,840.46, 5,299.92 and 2,162.26 is: 2,983.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.46 : 5,299.92 = 2,162.26 : x
  2. Step 2: Convert to fraction form
    3,840.46/5,299.92 = 2,162.26/x
  3. Step 3: Cross multiply
    3,840.46x = 5,299.92 × 2,162.26
  4. Step 4: Simplify right side
    3,840.46x = 11,459,805.02
  5. Step 5: Solve for x
    x = 11,459,805.02/3,840.46
  6. Step 6: Final answer
    x = 2,983.97

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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.