Home / 3,137.35-4,329.59-1,721.17

Finding the Fourth Proportional to 3,137.35, 4,329.59 and 1,721.17

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Solution

The fourth proportional to 3,137.35, 4,329.59 and 1,721.17 is: 2,375.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.35 : 4,329.59 = 1,721.17 : x
  2. Step 2: Convert to fraction form
    3,137.35/4,329.59 = 1,721.17/x
  3. Step 3: Cross multiply
    3,137.35x = 4,329.59 × 1,721.17
  4. Step 4: Simplify right side
    3,137.35x = 7,451,960.42
  5. Step 5: Solve for x
    x = 7,451,960.42/3,137.35
  6. Step 6: Final answer
    x = 2,375.24

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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.