Home / 4,876.62-6,728.07-2,780.22

Finding the Fourth Proportional to 4,876.62, 6,728.07 and 2,780.22

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Solution

The fourth proportional to 4,876.62, 6,728.07 and 2,780.22 is: 3,835.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,876.62 : 6,728.07 = 2,780.22 : x
  2. Step 2: Convert to fraction form
    4,876.62/6,728.07 = 2,780.22/x
  3. Step 3: Cross multiply
    4,876.62x = 6,728.07 × 2,780.22
  4. Step 4: Simplify right side
    4,876.62x = 18,705,514.78
  5. Step 5: Solve for x
    x = 18,705,514.78/4,876.62
  6. Step 6: Final answer
    x = 3,835.75

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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.