Home / 4,979.08-6,871.09-2,740.90

Finding the Fourth Proportional to 4,979.08, 6,871.09 and 2,740.90

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Solution

The fourth proportional to 4,979.08, 6,871.09 and 2,740.90 is: 3,782.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.08 : 6,871.09 = 2,740.90 : x
  2. Step 2: Convert to fraction form
    4,979.08/6,871.09 = 2,740.90/x
  3. Step 3: Cross multiply
    4,979.08x = 6,871.09 × 2,740.90
  4. Step 4: Simplify right side
    4,979.08x = 18,832,956.88
  5. Step 5: Solve for x
    x = 18,832,956.88/4,979.08
  6. Step 6: Final answer
    x = 3,782.42

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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.