Home / 3,189.98-4,781.03-1,628.71

Finding the Fourth Proportional to 3,189.98, 4,781.03 and 1,628.71

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Solution

The fourth proportional to 3,189.98, 4,781.03 and 1,628.71 is: 2,441.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.98 : 4,781.03 = 1,628.71 : x
  2. Step 2: Convert to fraction form
    3,189.98/4,781.03 = 1,628.71/x
  3. Step 3: Cross multiply
    3,189.98x = 4,781.03 × 1,628.71
  4. Step 4: Simplify right side
    3,189.98x = 7,786,891.28
  5. Step 5: Solve for x
    x = 7,786,891.28/3,189.98
  6. Step 6: Final answer
    x = 2,441.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.