Home / 4,979.91-6,871.16-2,882.82

Finding the Fourth Proportional to 4,979.91, 6,871.16 and 2,882.82

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Solution

The fourth proportional to 4,979.91, 6,871.16 and 2,882.82 is: 3,977.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.91 : 6,871.16 = 2,882.82 : x
  2. Step 2: Convert to fraction form
    4,979.91/6,871.16 = 2,882.82/x
  3. Step 3: Cross multiply
    4,979.91x = 6,871.16 × 2,882.82
  4. Step 4: Simplify right side
    4,979.91x = 19,808,317.47
  5. Step 5: Solve for x
    x = 19,808,317.47/4,979.91
  6. Step 6: Final answer
    x = 3,977.65

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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.