Home / 4,915.19-6,782.89-2,819.27

Finding the Fourth Proportional to 4,915.19, 6,782.89 and 2,819.27

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Solution

The fourth proportional to 4,915.19, 6,782.89 and 2,819.27 is: 3,890.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.19 : 6,782.89 = 2,819.27 : x
  2. Step 2: Convert to fraction form
    4,915.19/6,782.89 = 2,819.27/x
  3. Step 3: Cross multiply
    4,915.19x = 6,782.89 × 2,819.27
  4. Step 4: Simplify right side
    4,915.19x = 19,122,757.33
  5. Step 5: Solve for x
    x = 19,122,757.33/4,915.19
  6. Step 6: Final answer
    x = 3,890.55

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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.