Home / 4,915.66-6,784.52-2,819.79

Finding the Fourth Proportional to 4,915.66, 6,784.52 and 2,819.79

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Solution

The fourth proportional to 4,915.66, 6,784.52 and 2,819.79 is: 3,891.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.66 : 6,784.52 = 2,819.79 : x
  2. Step 2: Convert to fraction form
    4,915.66/6,784.52 = 2,819.79/x
  3. Step 3: Cross multiply
    4,915.66x = 6,784.52 × 2,819.79
  4. Step 4: Simplify right side
    4,915.66x = 19,130,921.65
  5. Step 5: Solve for x
    x = 19,130,921.65/4,915.66
  6. Step 6: Final answer
    x = 3,891.83

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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.