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Finding the Fourth Proportional to 3,191.32, 4,786.99 and 882.82

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Solution

The fourth proportional to 3,191.32, 4,786.99 and 882.82 is: 1,324.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.32 : 4,786.99 = 882.82 : x
  2. Step 2: Convert to fraction form
    3,191.32/4,786.99 = 882.82/x
  3. Step 3: Cross multiply
    3,191.32x = 4,786.99 × 882.82
  4. Step 4: Simplify right side
    3,191.32x = 4,226,050.51
  5. Step 5: Solve for x
    x = 4,226,050.51/3,191.32
  6. Step 6: Final answer
    x = 1,324.23

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Similar ratio
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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.