Home / 3,836.55-5,292.93-2,157.57

Finding the Fourth Proportional to 3,836.55, 5,292.93 and 2,157.57

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Solution

The fourth proportional to 3,836.55, 5,292.93 and 2,157.57 is: 2,976.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,836.55 : 5,292.93 = 2,157.57 : x
  2. Step 2: Convert to fraction form
    3,836.55/5,292.93 = 2,157.57/x
  3. Step 3: Cross multiply
    3,836.55x = 5,292.93 × 2,157.57
  4. Step 4: Simplify right side
    3,836.55x = 11,419,866.98
  5. Step 5: Solve for x
    x = 11,419,866.98/3,836.55
  6. Step 6: Final answer
    x = 2,976.60

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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.