Home / 3,631.05-5,444.88-1,438.28

Finding the Fourth Proportional to 3,631.05, 5,444.88 and 1,438.28

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Solution

The fourth proportional to 3,631.05, 5,444.88 and 1,438.28 is: 2,156.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,631.05 : 5,444.88 = 1,438.28 : x
  2. Step 2: Convert to fraction form
    3,631.05/5,444.88 = 1,438.28/x
  3. Step 3: Cross multiply
    3,631.05x = 5,444.88 × 1,438.28
  4. Step 4: Simplify right side
    3,631.05x = 7,831,234.78
  5. Step 5: Solve for x
    x = 7,831,234.78/3,631.05
  6. Step 6: Final answer
    x = 2,156.74

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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.