Home / 3,278.45-4,530.02-2,620.73

Finding the Fourth Proportional to 3,278.45, 4,530.02 and 2,620.73

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Solution

The fourth proportional to 3,278.45, 4,530.02 and 2,620.73 is: 3,621.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.45 : 4,530.02 = 2,620.73 : x
  2. Step 2: Convert to fraction form
    3,278.45/4,530.02 = 2,620.73/x
  3. Step 3: Cross multiply
    3,278.45x = 4,530.02 × 2,620.73
  4. Step 4: Simplify right side
    3,278.45x = 11,871,946.21
  5. Step 5: Solve for x
    x = 11,871,946.21/3,278.45
  6. Step 6: Final answer
    x = 3,621.21

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Similar ratio
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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.