Home / 3,109.25-4,291.07-2,321.93

Finding the Fourth Proportional to 3,109.25, 4,291.07 and 2,321.93

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Solution

The fourth proportional to 3,109.25, 4,291.07 and 2,321.93 is: 3,204.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.25 : 4,291.07 = 2,321.93 : x
  2. Step 2: Convert to fraction form
    3,109.25/4,291.07 = 2,321.93/x
  3. Step 3: Cross multiply
    3,109.25x = 4,291.07 × 2,321.93
  4. Step 4: Simplify right side
    3,109.25x = 9,963,593.10
  5. Step 5: Solve for x
    x = 9,963,593.10/3,109.25
  6. Step 6: Final answer
    x = 3,204.50

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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.