Home / 3,137.97-4,708.10-1,288.59

Finding the Fourth Proportional to 3,137.97, 4,708.10 and 1,288.59

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Solution

The fourth proportional to 3,137.97, 4,708.10 and 1,288.59 is: 1,933.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.97 : 4,708.10 = 1,288.59 : x
  2. Step 2: Convert to fraction form
    3,137.97/4,708.10 = 1,288.59/x
  3. Step 3: Cross multiply
    3,137.97x = 4,708.10 × 1,288.59
  4. Step 4: Simplify right side
    3,137.97x = 6,066,810.58
  5. Step 5: Solve for x
    x = 6,066,810.58/3,137.97
  6. Step 6: Final answer
    x = 1,933.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.