Home / 3,271.04-4,507.20-2,221.28

Finding the Fourth Proportional to 3,271.04, 4,507.20 and 2,221.28

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Solution

The fourth proportional to 3,271.04, 4,507.20 and 2,221.28 is: 3,060.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,271.04 : 4,507.20 = 2,221.28 : x
  2. Step 2: Convert to fraction form
    3,271.04/4,507.20 = 2,221.28/x
  3. Step 3: Cross multiply
    3,271.04x = 4,507.20 × 2,221.28
  4. Step 4: Simplify right side
    3,271.04x = 10,011,753.22
  5. Step 5: Solve for x
    x = 10,011,753.22/3,271.04
  6. Step 6: Final answer
    x = 3,060.72

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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.