Home / 4,979.68-6,872.58-2,855.55

Finding the Fourth Proportional to 4,979.68, 6,872.58 and 2,855.55

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Solution

The fourth proportional to 4,979.68, 6,872.58 and 2,855.55 is: 3,941.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.68 : 6,872.58 = 2,855.55 : x
  2. Step 2: Convert to fraction form
    4,979.68/6,872.58 = 2,855.55/x
  3. Step 3: Cross multiply
    4,979.68x = 6,872.58 × 2,855.55
  4. Step 4: Simplify right side
    4,979.68x = 19,625,021.59
  5. Step 5: Solve for x
    x = 19,625,021.59/4,979.68
  6. Step 6: Final answer
    x = 3,941.02

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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.