Home / 3,434.78-5,154.91-1,355.31

Finding the Fourth Proportional to 3,434.78, 5,154.91 and 1,355.31

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Solution

The fourth proportional to 3,434.78, 5,154.91 and 1,355.31 is: 2,034.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,434.78 : 5,154.91 = 1,355.31 : x
  2. Step 2: Convert to fraction form
    3,434.78/5,154.91 = 1,355.31/x
  3. Step 3: Cross multiply
    3,434.78x = 5,154.91 × 1,355.31
  4. Step 4: Simplify right side
    3,434.78x = 6,986,497.68
  5. Step 5: Solve for x
    x = 6,986,497.68/3,434.78
  6. Step 6: Final answer
    x = 2,034.04

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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.