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Finding the Fourth Proportional to 3,469.95, 5,205.02 and 1,129.97

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Solution

The fourth proportional to 3,469.95, 5,205.02 and 1,129.97 is: 1,694.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,469.95 : 5,205.02 = 1,129.97 : x
  2. Step 2: Convert to fraction form
    3,469.95/5,205.02 = 1,129.97/x
  3. Step 3: Cross multiply
    3,469.95x = 5,205.02 × 1,129.97
  4. Step 4: Simplify right side
    3,469.95x = 5,881,484.77
  5. Step 5: Solve for x
    x = 5,881,484.77/3,469.95
  6. Step 6: Final answer
    x = 1,694.98

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1.5x scale

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.