Home / 3,190.16-4,402.17-1,773.78

Finding the Fourth Proportional to 3,190.16, 4,402.17 and 1,773.78

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Solution

The fourth proportional to 3,190.16, 4,402.17 and 1,773.78 is: 2,447.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.16 : 4,402.17 = 1,773.78 : x
  2. Step 2: Convert to fraction form
    3,190.16/4,402.17 = 1,773.78/x
  3. Step 3: Cross multiply
    3,190.16x = 4,402.17 × 1,773.78
  4. Step 4: Simplify right side
    3,190.16x = 7,808,481.10
  5. Step 5: Solve for x
    x = 7,808,481.10/3,190.16
  6. Step 6: Final answer
    x = 2,447.68

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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.