Home / 3,438.68-5,158.30-1,099.02

Finding the Fourth Proportional to 3,438.68, 5,158.30 and 1,099.02

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Solution

The fourth proportional to 3,438.68, 5,158.30 and 1,099.02 is: 1,648.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.68 : 5,158.30 = 1,099.02 : x
  2. Step 2: Convert to fraction form
    3,438.68/5,158.30 = 1,099.02/x
  3. Step 3: Cross multiply
    3,438.68x = 5,158.30 × 1,099.02
  4. Step 4: Simplify right side
    3,438.68x = 5,669,074.87
  5. Step 5: Solve for x
    x = 5,669,074.87/3,438.68
  6. Step 6: Final answer
    x = 1,648.62

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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.