Home / 3,430.67-5,144.92-1,239.11

Finding the Fourth Proportional to 3,430.67, 5,144.92 and 1,239.11

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Solution

The fourth proportional to 3,430.67, 5,144.92 and 1,239.11 is: 1,858.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.67 : 5,144.92 = 1,239.11 : x
  2. Step 2: Convert to fraction form
    3,430.67/5,144.92 = 1,239.11/x
  3. Step 3: Cross multiply
    3,430.67x = 5,144.92 × 1,239.11
  4. Step 4: Simplify right side
    3,430.67x = 6,375,093.00
  5. Step 5: Solve for x
    x = 6,375,093.00/3,430.67
  6. Step 6: Final answer
    x = 1,858.26

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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.