Home / 2,378.38-3,558.66-1,967.71

Finding the Fourth Proportional to 2,378.38, 3,558.66 and 1,967.71

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Solution

The fourth proportional to 2,378.38, 3,558.66 and 1,967.71 is: 2,944.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378.38 : 3,558.66 = 1,967.71 : x
  2. Step 2: Convert to fraction form
    2,378.38/3,558.66 = 1,967.71/x
  3. Step 3: Cross multiply
    2,378.38x = 3,558.66 × 1,967.71
  4. Step 4: Simplify right side
    2,378.38x = 7,002,410.87
  5. Step 5: Solve for x
    x = 7,002,410.87/2,378.38
  6. Step 6: Final answer
    x = 2,944.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.