Home / 3,688.38-5,530.50-1,222.53

Finding the Fourth Proportional to 3,688.38, 5,530.50 and 1,222.53

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Solution

The fourth proportional to 3,688.38, 5,530.50 and 1,222.53 is: 1,833.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.38 : 5,530.50 = 1,222.53 : x
  2. Step 2: Convert to fraction form
    3,688.38/5,530.50 = 1,222.53/x
  3. Step 3: Cross multiply
    3,688.38x = 5,530.50 × 1,222.53
  4. Step 4: Simplify right side
    3,688.38x = 6,761,202.17
  5. Step 5: Solve for x
    x = 6,761,202.17/3,688.38
  6. Step 6: Final answer
    x = 1,833.11

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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.