Home / 3,101.69-4,278.35-2,039.51

Finding the Fourth Proportional to 3,101.69, 4,278.35 and 2,039.51

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Solution

The fourth proportional to 3,101.69, 4,278.35 and 2,039.51 is: 2,813.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.69 : 4,278.35 = 2,039.51 : x
  2. Step 2: Convert to fraction form
    3,101.69/4,278.35 = 2,039.51/x
  3. Step 3: Cross multiply
    3,101.69x = 4,278.35 × 2,039.51
  4. Step 4: Simplify right side
    3,101.69x = 8,725,753.40
  5. Step 5: Solve for x
    x = 8,725,753.40/3,101.69
  6. Step 6: Final answer
    x = 2,813.22

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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.