Home / 3,688.16-5,532.12-1,221.96

Finding the Fourth Proportional to 3,688.16, 5,532.12 and 1,221.96

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Solution

The fourth proportional to 3,688.16, 5,532.12 and 1,221.96 is: 1,832.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.16 : 5,532.12 = 1,221.96 : x
  2. Step 2: Convert to fraction form
    3,688.16/5,532.12 = 1,221.96/x
  3. Step 3: Cross multiply
    3,688.16x = 5,532.12 × 1,221.96
  4. Step 4: Simplify right side
    3,688.16x = 6,760,029.36
  5. Step 5: Solve for x
    x = 6,760,029.36/3,688.16
  6. Step 6: Final answer
    x = 1,832.90

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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.