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Finding the Fourth Proportional to 3,289.52, 4,934.11 and 824.19

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Solution

The fourth proportional to 3,289.52, 4,934.11 and 824.19 is: 1,236.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,289.52 : 4,934.11 = 824.19 : x
  2. Step 2: Convert to fraction form
    3,289.52/4,934.11 = 824.19/x
  3. Step 3: Cross multiply
    3,289.52x = 4,934.11 × 824.19
  4. Step 4: Simplify right side
    3,289.52x = 4,066,644.12
  5. Step 5: Solve for x
    x = 4,066,644.12/3,289.52
  6. Step 6: Final answer
    x = 1,236.24

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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.