Home / 3,842.58-5,299.92-2,647.96

Finding the Fourth Proportional to 3,842.58, 5,299.92 and 2,647.96

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Solution

The fourth proportional to 3,842.58, 5,299.92 and 2,647.96 is: 3,652.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,842.58 : 5,299.92 = 2,647.96 : x
  2. Step 2: Convert to fraction form
    3,842.58/5,299.92 = 2,647.96/x
  3. Step 3: Cross multiply
    3,842.58x = 5,299.92 × 2,647.96
  4. Step 4: Simplify right side
    3,842.58x = 14,033,976.16
  5. Step 5: Solve for x
    x = 14,033,976.16/3,842.58
  6. Step 6: Final answer
    x = 3,652.23

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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.