Home / 3,190.91-4,786.38-1,547.70

Finding the Fourth Proportional to 3,190.91, 4,786.38 and 1,547.70

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Solution

The fourth proportional to 3,190.91, 4,786.38 and 1,547.70 is: 2,321.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.91 : 4,786.38 = 1,547.70 : x
  2. Step 2: Convert to fraction form
    3,190.91/4,786.38 = 1,547.70/x
  3. Step 3: Cross multiply
    3,190.91x = 4,786.38 × 1,547.70
  4. Step 4: Simplify right side
    3,190.91x = 7,407,885.52
  5. Step 5: Solve for x
    x = 7,407,885.52/3,190.91
  6. Step 6: Final answer
    x = 2,321.56

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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.