Home / 4,979.98-6,872.26-2,855.89

Finding the Fourth Proportional to 4,979.98, 6,872.26 and 2,855.89

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Solution

The fourth proportional to 4,979.98, 6,872.26 and 2,855.89 is: 3,941.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.98 : 6,872.26 = 2,855.89 : x
  2. Step 2: Convert to fraction form
    4,979.98/6,872.26 = 2,855.89/x
  3. Step 3: Cross multiply
    4,979.98x = 6,872.26 × 2,855.89
  4. Step 4: Simplify right side
    4,979.98x = 19,626,369.97
  5. Step 5: Solve for x
    x = 19,626,369.97/4,979.98
  6. Step 6: Final answer
    x = 3,941.06

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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.