Home / 3,529.50-5,296.68-1,221

Finding the Fourth Proportional to 3,529.50, 5,296.68 and 1,221

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Solution

The fourth proportional to 3,529.50, 5,296.68 and 1,221 is: 1,832.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,529.50 : 5,296.68 = 1,221 : x
  2. Step 2: Convert to fraction form
    3,529.50/5,296.68 = 1,221/x
  3. Step 3: Cross multiply
    3,529.50x = 5,296.68 × 1,221
  4. Step 4: Simplify right side
    3,529.50x = 6,467,246.28
  5. Step 5: Solve for x
    x = 6,467,246.28/3,529.50
  6. Step 6: Final answer
    x = 1,832.34

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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.