Home / 3,190.78-4,402.03-2,353.49

Finding the Fourth Proportional to 3,190.78, 4,402.03 and 2,353.49

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Solution

The fourth proportional to 3,190.78, 4,402.03 and 2,353.49 is: 3,246.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.78 : 4,402.03 = 2,353.49 : x
  2. Step 2: Convert to fraction form
    3,190.78/4,402.03 = 2,353.49/x
  3. Step 3: Cross multiply
    3,190.78x = 4,402.03 × 2,353.49
  4. Step 4: Simplify right side
    3,190.78x = 10,360,133.58
  5. Step 5: Solve for x
    x = 10,360,133.58/3,190.78
  6. Step 6: Final answer
    x = 3,246.90

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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.