Home / 3,071.20-4,609.39-1,223.59

Finding the Fourth Proportional to 3,071.20, 4,609.39 and 1,223.59

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Solution

The fourth proportional to 3,071.20, 4,609.39 and 1,223.59 is: 1,836.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,071.20 : 4,609.39 = 1,223.59 : x
  2. Step 2: Convert to fraction form
    3,071.20/4,609.39 = 1,223.59/x
  3. Step 3: Cross multiply
    3,071.20x = 4,609.39 × 1,223.59
  4. Step 4: Simplify right side
    3,071.20x = 5,640,003.51
  5. Step 5: Solve for x
    x = 5,640,003.51/3,071.20
  6. Step 6: Final answer
    x = 1,836.42

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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.