Home / 3,835.92-5,293.08-2,157.12

Finding the Fourth Proportional to 3,835.92, 5,293.08 and 2,157.12

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Solution

The fourth proportional to 3,835.92, 5,293.08 and 2,157.12 is: 2,976.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,835.92 : 5,293.08 = 2,157.12 : x
  2. Step 2: Convert to fraction form
    3,835.92/5,293.08 = 2,157.12/x
  3. Step 3: Cross multiply
    3,835.92x = 5,293.08 × 2,157.12
  4. Step 4: Simplify right side
    3,835.92x = 11,417,808.73
  5. Step 5: Solve for x
    x = 11,417,808.73/3,835.92
  6. Step 6: Final answer
    x = 2,976.55

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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.