Home / 4,145.84-5,721.37-2,257.49

Finding the Fourth Proportional to 4,145.84, 5,721.37 and 2,257.49

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Solution

The fourth proportional to 4,145.84, 5,721.37 and 2,257.49 is: 3,115.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.84 : 5,721.37 = 2,257.49 : x
  2. Step 2: Convert to fraction form
    4,145.84/5,721.37 = 2,257.49/x
  3. Step 3: Cross multiply
    4,145.84x = 5,721.37 × 2,257.49
  4. Step 4: Simplify right side
    4,145.84x = 12,915,924.27
  5. Step 5: Solve for x
    x = 12,915,924.27/4,145.84
  6. Step 6: Final answer
    x = 3,115.39

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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.