Home / 3,688.30-5,531.01-1,222.46

Finding the Fourth Proportional to 3,688.30, 5,531.01 and 1,222.46

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Solution

The fourth proportional to 3,688.30, 5,531.01 and 1,222.46 is: 1,833.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.30 : 5,531.01 = 1,222.46 : x
  2. Step 2: Convert to fraction form
    3,688.30/5,531.01 = 1,222.46/x
  3. Step 3: Cross multiply
    3,688.30x = 5,531.01 × 1,222.46
  4. Step 4: Simplify right side
    3,688.30x = 6,761,438.48
  5. Step 5: Solve for x
    x = 6,761,438.48/3,688.30
  6. Step 6: Final answer
    x = 1,833.21

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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.