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Finding the Fourth Proportional to 3,137.94, 4,329.05 and 1,959.39

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Solution

The fourth proportional to 3,137.94, 4,329.05 and 1,959.39 is: 2,703.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.94 : 4,329.05 = 1,959.39 : x
  2. Step 2: Convert to fraction form
    3,137.94/4,329.05 = 1,959.39/x
  3. Step 3: Cross multiply
    3,137.94x = 4,329.05 × 1,959.39
  4. Step 4: Simplify right side
    3,137.94x = 8,482,287.48
  5. Step 5: Solve for x
    x = 8,482,287.48/3,137.94
  6. Step 6: Final answer
    x = 2,703.14

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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.