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Finding the Fourth Proportional to 3,479.36, 5,218.97 and 882.29

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Solution

The fourth proportional to 3,479.36, 5,218.97 and 882.29 is: 1,323.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.36 : 5,218.97 = 882.29 : x
  2. Step 2: Convert to fraction form
    3,479.36/5,218.97 = 882.29/x
  3. Step 3: Cross multiply
    3,479.36x = 5,218.97 × 882.29
  4. Step 4: Simplify right side
    3,479.36x = 4,604,653.68
  5. Step 5: Solve for x
    x = 4,604,653.68/3,479.36
  6. Step 6: Final answer
    x = 1,323.42

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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.