Home / 4,215.62-5,817.86-2,447.49

Finding the Fourth Proportional to 4,215.62, 5,817.86 and 2,447.49

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Solution

The fourth proportional to 4,215.62, 5,817.86 and 2,447.49 is: 3,377.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,215.62 : 5,817.86 = 2,447.49 : x
  2. Step 2: Convert to fraction form
    4,215.62/5,817.86 = 2,447.49/x
  3. Step 3: Cross multiply
    4,215.62x = 5,817.86 × 2,447.49
  4. Step 4: Simplify right side
    4,215.62x = 14,239,160.29
  5. Step 5: Solve for x
    x = 14,239,160.29/4,215.62
  6. Step 6: Final answer
    x = 3,377.72

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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.