Home / 1,979.20-2,954.18-1,745.73

Finding the Fourth Proportional to 1,979.20, 2,954.18 and 1,745.73

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Solution

The fourth proportional to 1,979.20, 2,954.18 and 1,745.73 is: 2,605.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979.20 : 2,954.18 = 1,745.73 : x
  2. Step 2: Convert to fraction form
    1,979.20/2,954.18 = 1,745.73/x
  3. Step 3: Cross multiply
    1,979.20x = 2,954.18 × 1,745.73
  4. Step 4: Simplify right side
    1,979.20x = 5,157,191.92
  5. Step 5: Solve for x
    x = 5,157,191.92/1,979.20
  6. Step 6: Final answer
    x = 2,605.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.