Home / 3,438.43-5,154.09-1,355.61

Finding the Fourth Proportional to 3,438.43, 5,154.09 and 1,355.61

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Solution

The fourth proportional to 3,438.43, 5,154.09 and 1,355.61 is: 2,032.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.43 : 5,154.09 = 1,355.61 : x
  2. Step 2: Convert to fraction form
    3,438.43/5,154.09 = 1,355.61/x
  3. Step 3: Cross multiply
    3,438.43x = 5,154.09 × 1,355.61
  4. Step 4: Simplify right side
    3,438.43x = 6,986,935.94
  5. Step 5: Solve for x
    x = 6,986,935.94/3,438.43
  6. Step 6: Final answer
    x = 2,032.01

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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.