Home / 4,286.78-5,915.80-2,398.47

Finding the Fourth Proportional to 4,286.78, 5,915.80 and 2,398.47

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Solution

The fourth proportional to 4,286.78, 5,915.80 and 2,398.47 is: 3,309.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,286.78 : 5,915.80 = 2,398.47 : x
  2. Step 2: Convert to fraction form
    4,286.78/5,915.80 = 2,398.47/x
  3. Step 3: Cross multiply
    4,286.78x = 5,915.80 × 2,398.47
  4. Step 4: Simplify right side
    4,286.78x = 14,188,868.83
  5. Step 5: Solve for x
    x = 14,188,868.83/4,286.78
  6. Step 6: Final answer
    x = 3,309.91

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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.