Home / 3,434.14-5,147.28-1,353

Finding the Fourth Proportional to 3,434.14, 5,147.28 and 1,353

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Solution

The fourth proportional to 3,434.14, 5,147.28 and 1,353 is: 2,027.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,434.14 : 5,147.28 = 1,353 : x
  2. Step 2: Convert to fraction form
    3,434.14/5,147.28 = 1,353/x
  3. Step 3: Cross multiply
    3,434.14x = 5,147.28 × 1,353
  4. Step 4: Simplify right side
    3,434.14x = 6,964,269.84
  5. Step 5: Solve for x
    x = 6,964,269.84/3,434.14
  6. Step 6: Final answer
    x = 2,027.95

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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.