Home / 4,979.24-6,871.35-2,741.20

Finding the Fourth Proportional to 4,979.24, 6,871.35 and 2,741.20

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Solution

The fourth proportional to 4,979.24, 6,871.35 and 2,741.20 is: 3,782.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.24 : 6,871.35 = 2,741.20 : x
  2. Step 2: Convert to fraction form
    4,979.24/6,871.35 = 2,741.20/x
  3. Step 3: Cross multiply
    4,979.24x = 6,871.35 × 2,741.20
  4. Step 4: Simplify right side
    4,979.24x = 18,835,744.62
  5. Step 5: Solve for x
    x = 18,835,744.62/4,979.24
  6. Step 6: Final answer
    x = 3,782.86

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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.