Home / 4,979.40-6,871.54-2,741.16

Finding the Fourth Proportional to 4,979.40, 6,871.54 and 2,741.16

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Solution

The fourth proportional to 4,979.40, 6,871.54 and 2,741.16 is: 3,782.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.40 : 6,871.54 = 2,741.16 : x
  2. Step 2: Convert to fraction form
    4,979.40/6,871.54 = 2,741.16/x
  3. Step 3: Cross multiply
    4,979.40x = 6,871.54 × 2,741.16
  4. Step 4: Simplify right side
    4,979.40x = 18,835,990.59
  5. Step 5: Solve for x
    x = 18,835,990.59/4,979.40
  6. Step 6: Final answer
    x = 3,782.78

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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.