Home / 3,800.89-5,245.02-2,122.24

Finding the Fourth Proportional to 3,800.89, 5,245.02 and 2,122.24

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Solution

The fourth proportional to 3,800.89, 5,245.02 and 2,122.24 is: 2,928.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,800.89 : 5,245.02 = 2,122.24 : x
  2. Step 2: Convert to fraction form
    3,800.89/5,245.02 = 2,122.24/x
  3. Step 3: Cross multiply
    3,800.89x = 5,245.02 × 2,122.24
  4. Step 4: Simplify right side
    3,800.89x = 11,131,191.24
  5. Step 5: Solve for x
    x = 11,131,191.24/3,800.89
  6. Step 6: Final answer
    x = 2,928.57

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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.