Home / 4,979.60-6,871.88-2,741.48

Finding the Fourth Proportional to 4,979.60, 6,871.88 and 2,741.48

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Solution

The fourth proportional to 4,979.60, 6,871.88 and 2,741.48 is: 3,783.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.60 : 6,871.88 = 2,741.48 : x
  2. Step 2: Convert to fraction form
    4,979.60/6,871.88 = 2,741.48/x
  3. Step 3: Cross multiply
    4,979.60x = 6,871.88 × 2,741.48
  4. Step 4: Simplify right side
    4,979.60x = 18,839,145.62
  5. Step 5: Solve for x
    x = 18,839,145.62/4,979.60
  6. Step 6: Final answer
    x = 3,783.27

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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.