Home / 4,919.27-7,378.83-2,945.45

Finding the Fourth Proportional to 4,919.27, 7,378.83 and 2,945.45

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Solution

The fourth proportional to 4,919.27, 7,378.83 and 2,945.45 is: 4,418.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.27 : 7,378.83 = 2,945.45 : x
  2. Step 2: Convert to fraction form
    4,919.27/7,378.83 = 2,945.45/x
  3. Step 3: Cross multiply
    4,919.27x = 7,378.83 × 2,945.45
  4. Step 4: Simplify right side
    4,919.27x = 21,733,937.93
  5. Step 5: Solve for x
    x = 21,733,937.93/4,919.27
  6. Step 6: Final answer
    x = 4,418.13

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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.