Home / 3,835.82-5,293.17-2,157.40

Finding the Fourth Proportional to 3,835.82, 5,293.17 and 2,157.40

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Solution

The fourth proportional to 3,835.82, 5,293.17 and 2,157.40 is: 2,977.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,835.82 : 5,293.17 = 2,157.40 : x
  2. Step 2: Convert to fraction form
    3,835.82/5,293.17 = 2,157.40/x
  3. Step 3: Cross multiply
    3,835.82x = 5,293.17 × 2,157.40
  4. Step 4: Simplify right side
    3,835.82x = 11,419,484.96
  5. Step 5: Solve for x
    x = 11,419,484.96/3,835.82
  6. Step 6: Final answer
    x = 2,977.06

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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.