Home / 3,109.77-4,291.79-2,322.45

Finding the Fourth Proportional to 3,109.77, 4,291.79 and 2,322.45

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Solution

The fourth proportional to 3,109.77, 4,291.79 and 2,322.45 is: 3,205.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.77 : 4,291.79 = 2,322.45 : x
  2. Step 2: Convert to fraction form
    3,109.77/4,291.79 = 2,322.45/x
  3. Step 3: Cross multiply
    3,109.77x = 4,291.79 × 2,322.45
  4. Step 4: Simplify right side
    3,109.77x = 9,967,456.07
  5. Step 5: Solve for x
    x = 9,967,456.07/3,109.77
  6. Step 6: Final answer
    x = 3,205.21

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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.