Home / 3,190.48-4,402.78-1,793.20

Finding the Fourth Proportional to 3,190.48, 4,402.78 and 1,793.20

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Solution

The fourth proportional to 3,190.48, 4,402.78 and 1,793.20 is: 2,474.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.48 : 4,402.78 = 1,793.20 : x
  2. Step 2: Convert to fraction form
    3,190.48/4,402.78 = 1,793.20/x
  3. Step 3: Cross multiply
    3,190.48x = 4,402.78 × 1,793.20
  4. Step 4: Simplify right side
    3,190.48x = 7,895,065.10
  5. Step 5: Solve for x
    x = 7,895,065.10/3,190.48
  6. Step 6: Final answer
    x = 2,474.57

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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.