Home / 3,122.07-4,308.30-2,239.35

Finding the Fourth Proportional to 3,122.07, 4,308.30 and 2,239.35

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Solution

The fourth proportional to 3,122.07, 4,308.30 and 2,239.35 is: 3,090.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.07 : 4,308.30 = 2,239.35 : x
  2. Step 2: Convert to fraction form
    3,122.07/4,308.30 = 2,239.35/x
  3. Step 3: Cross multiply
    3,122.07x = 4,308.30 × 2,239.35
  4. Step 4: Simplify right side
    3,122.07x = 9,647,791.61
  5. Step 5: Solve for x
    x = 9,647,791.61/3,122.07
  6. Step 6: Final answer
    x = 3,090.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.