Home / 3,784.28-5,222.49-2,191.10

Finding the Fourth Proportional to 3,784.28, 5,222.49 and 2,191.10

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Solution

The fourth proportional to 3,784.28, 5,222.49 and 2,191.10 is: 3,023.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,784.28 : 5,222.49 = 2,191.10 : x
  2. Step 2: Convert to fraction form
    3,784.28/5,222.49 = 2,191.10/x
  3. Step 3: Cross multiply
    3,784.28x = 5,222.49 × 2,191.10
  4. Step 4: Simplify right side
    3,784.28x = 11,442,997.84
  5. Step 5: Solve for x
    x = 11,442,997.84/3,784.28
  6. Step 6: Final answer
    x = 3,023.82

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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.