Home / 3,271.92-4,512.80-2,277.20

Finding the Fourth Proportional to 3,271.92, 4,512.80 and 2,277.20

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Solution

The fourth proportional to 3,271.92, 4,512.80 and 2,277.20 is: 3,140.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,271.92 : 4,512.80 = 2,277.20 : x
  2. Step 2: Convert to fraction form
    3,271.92/4,512.80 = 2,277.20/x
  3. Step 3: Cross multiply
    3,271.92x = 4,512.80 × 2,277.20
  4. Step 4: Simplify right side
    3,271.92x = 10,276,548.16
  5. Step 5: Solve for x
    x = 10,276,548.16/3,271.92
  6. Step 6: Final answer
    x = 3,140.83

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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.