Home / 4,979.23-6,871.26-2,855.14

Finding the Fourth Proportional to 4,979.23, 6,871.26 and 2,855.14

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Solution

The fourth proportional to 4,979.23, 6,871.26 and 2,855.14 is: 3,940.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.23 : 6,871.26 = 2,855.14 : x
  2. Step 2: Convert to fraction form
    4,979.23/6,871.26 = 2,855.14/x
  3. Step 3: Cross multiply
    4,979.23x = 6,871.26 × 2,855.14
  4. Step 4: Simplify right side
    4,979.23x = 19,618,409.28
  5. Step 5: Solve for x
    x = 19,618,409.28/4,979.23
  6. Step 6: Final answer
    x = 3,940.05

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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.