Home / 3,278.95-4,530.71-2,621.23

Finding the Fourth Proportional to 3,278.95, 4,530.71 and 2,621.23

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Solution

The fourth proportional to 3,278.95, 4,530.71 and 2,621.23 is: 3,621.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.95 : 4,530.71 = 2,621.23 : x
  2. Step 2: Convert to fraction form
    3,278.95/4,530.71 = 2,621.23/x
  3. Step 3: Cross multiply
    3,278.95x = 4,530.71 × 2,621.23
  4. Step 4: Simplify right side
    3,278.95x = 11,876,032.97
  5. Step 5: Solve for x
    x = 11,876,032.97/3,278.95
  6. Step 6: Final answer
    x = 3,621.90

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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.