Home / 4,915.98-6,786.37-3,148.61

Finding the Fourth Proportional to 4,915.98, 6,786.37 and 3,148.61

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Solution

The fourth proportional to 4,915.98, 6,786.37 and 3,148.61 is: 4,346.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.98 : 6,786.37 = 3,148.61 : x
  2. Step 2: Convert to fraction form
    4,915.98/6,786.37 = 3,148.61/x
  3. Step 3: Cross multiply
    4,915.98x = 6,786.37 × 3,148.61
  4. Step 4: Simplify right side
    4,915.98x = 21,367,632.45
  5. Step 5: Solve for x
    x = 21,367,632.45/4,915.98
  6. Step 6: Final answer
    x = 4,346.57

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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.