Home / 3,474.95-4,790.49-2,147.90

Finding the Fourth Proportional to 3,474.95, 4,790.49 and 2,147.90

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Solution

The fourth proportional to 3,474.95, 4,790.49 and 2,147.90 is: 2,961.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,474.95 : 4,790.49 = 2,147.90 : x
  2. Step 2: Convert to fraction form
    3,474.95/4,790.49 = 2,147.90/x
  3. Step 3: Cross multiply
    3,474.95x = 4,790.49 × 2,147.90
  4. Step 4: Simplify right side
    3,474.95x = 10,289,493.47
  5. Step 5: Solve for x
    x = 10,289,493.47/3,474.95
  6. Step 6: Final answer
    x = 2,961.05

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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.