Home / 3,190.21-4,402.54-1,863.97

Finding the Fourth Proportional to 3,190.21, 4,402.54 and 1,863.97

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Solution

The fourth proportional to 3,190.21, 4,402.54 and 1,863.97 is: 2,572.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.21 : 4,402.54 = 1,863.97 : x
  2. Step 2: Convert to fraction form
    3,190.21/4,402.54 = 1,863.97/x
  3. Step 3: Cross multiply
    3,190.21x = 4,402.54 × 1,863.97
  4. Step 4: Simplify right side
    3,190.21x = 8,206,193.81
  5. Step 5: Solve for x
    x = 8,206,193.81/3,190.21
  6. Step 6: Final answer
    x = 2,572.31

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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.