Home / 1,633.20-2,253.48-934.80

Finding the Fourth Proportional to 1,633.20, 2,253.48 and 934.80

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Solution

The fourth proportional to 1,633.20, 2,253.48 and 934.80 is: 1,289.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,633.20 : 2,253.48 = 934.80 : x
  2. Step 2: Convert to fraction form
    1,633.20/2,253.48 = 934.80/x
  3. Step 3: Cross multiply
    1,633.20x = 2,253.48 × 934.80
  4. Step 4: Simplify right side
    1,633.20x = 2,106,553.10
  5. Step 5: Solve for x
    x = 2,106,553.10/1,633.20
  6. Step 6: Final answer
    x = 1,289.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.