Home / 2,722.72-4,056.36-2,629.92

Finding the Fourth Proportional to 2,722.72, 4,056.36 and 2,629.92

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Solution

The fourth proportional to 2,722.72, 4,056.36 and 2,629.92 is: 3,918.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,722.72 : 4,056.36 = 2,629.92 : x
  2. Step 2: Convert to fraction form
    2,722.72/4,056.36 = 2,629.92/x
  3. Step 3: Cross multiply
    2,722.72x = 4,056.36 × 2,629.92
  4. Step 4: Simplify right side
    2,722.72x = 10,667,902.29
  5. Step 5: Solve for x
    x = 10,667,902.29/2,722.72
  6. Step 6: Final answer
    x = 3,918.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.