Home / 3,698.31-5,103.71-2,126.44

Finding the Fourth Proportional to 3,698.31, 5,103.71 and 2,126.44

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Solution

The fourth proportional to 3,698.31, 5,103.71 and 2,126.44 is: 2,934.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,698.31 : 5,103.71 = 2,126.44 : x
  2. Step 2: Convert to fraction form
    3,698.31/5,103.71 = 2,126.44/x
  3. Step 3: Cross multiply
    3,698.31x = 5,103.71 × 2,126.44
  4. Step 4: Simplify right side
    3,698.31x = 10,852,733.09
  5. Step 5: Solve for x
    x = 10,852,733.09/3,698.31
  6. Step 6: Final answer
    x = 2,934.51

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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.