Home / 4,906.72-6,768.89-2,915.86

Finding the Fourth Proportional to 4,906.72, 6,768.89 and 2,915.86

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Solution

The fourth proportional to 4,906.72, 6,768.89 and 2,915.86 is: 4,022.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,906.72 : 6,768.89 = 2,915.86 : x
  2. Step 2: Convert to fraction form
    4,906.72/6,768.89 = 2,915.86/x
  3. Step 3: Cross multiply
    4,906.72x = 6,768.89 × 2,915.86
  4. Step 4: Simplify right side
    4,906.72x = 19,737,121.02
  5. Step 5: Solve for x
    x = 19,737,121.02/4,906.72
  6. Step 6: Final answer
    x = 4,022.47

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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.