Home / 3,191.29-4,786.38-882.25

Finding the Fourth Proportional to 3,191.29, 4,786.38 and 882.25

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Solution

The fourth proportional to 3,191.29, 4,786.38 and 882.25 is: 1,323.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.29 : 4,786.38 = 882.25 : x
  2. Step 2: Convert to fraction form
    3,191.29/4,786.38 = 882.25/x
  3. Step 3: Cross multiply
    3,191.29x = 4,786.38 × 882.25
  4. Step 4: Simplify right side
    3,191.29x = 4,222,783.76
  5. Step 5: Solve for x
    x = 4,222,783.76/3,191.29
  6. Step 6: Final answer
    x = 1,323.22

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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.