Home / 4,695.72-6,479.08-2,806.80

Finding the Fourth Proportional to 4,695.72, 6,479.08 and 2,806.80

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Solution

The fourth proportional to 4,695.72, 6,479.08 and 2,806.80 is: 3,872.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,695.72 : 6,479.08 = 2,806.80 : x
  2. Step 2: Convert to fraction form
    4,695.72/6,479.08 = 2,806.80/x
  3. Step 3: Cross multiply
    4,695.72x = 6,479.08 × 2,806.80
  4. Step 4: Simplify right side
    4,695.72x = 18,185,481.74
  5. Step 5: Solve for x
    x = 18,185,481.74/4,695.72
  6. Step 6: Final answer
    x = 3,872.78

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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.