Home / 3,431.03-5,146.94-1,239.17

Finding the Fourth Proportional to 3,431.03, 5,146.94 and 1,239.17

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Solution

The fourth proportional to 3,431.03, 5,146.94 and 1,239.17 is: 1,858.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.03 : 5,146.94 = 1,239.17 : x
  2. Step 2: Convert to fraction form
    3,431.03/5,146.94 = 1,239.17/x
  3. Step 3: Cross multiply
    3,431.03x = 5,146.94 × 1,239.17
  4. Step 4: Simplify right side
    3,431.03x = 6,377,911.00
  5. Step 5: Solve for x
    x = 6,377,911.00/3,431.03
  6. Step 6: Final answer
    x = 1,858.89

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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.