Home / 4,979.76-6,872.04-2,883.84

Finding the Fourth Proportional to 4,979.76, 6,872.04 and 2,883.84

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Solution

The fourth proportional to 4,979.76, 6,872.04 and 2,883.84 is: 3,979.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.76 : 6,872.04 = 2,883.84 : x
  2. Step 2: Convert to fraction form
    4,979.76/6,872.04 = 2,883.84/x
  3. Step 3: Cross multiply
    4,979.76x = 6,872.04 × 2,883.84
  4. Step 4: Simplify right side
    4,979.76x = 19,817,863.83
  5. Step 5: Solve for x
    x = 19,817,863.83/4,979.76
  6. Step 6: Final answer
    x = 3,979.68

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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.