Home / 4,979.14-6,870.82-2,854.65

Finding the Fourth Proportional to 4,979.14, 6,870.82 and 2,854.65

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Solution

The fourth proportional to 4,979.14, 6,870.82 and 2,854.65 is: 3,939.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.14 : 6,870.82 = 2,854.65 : x
  2. Step 2: Convert to fraction form
    4,979.14/6,870.82 = 2,854.65/x
  3. Step 3: Cross multiply
    4,979.14x = 6,870.82 × 2,854.65
  4. Step 4: Simplify right side
    4,979.14x = 19,613,786.31
  5. Step 5: Solve for x
    x = 19,613,786.31/4,979.14
  6. Step 6: Final answer
    x = 3,939.19

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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.