Home / 7,378.90-10,183.17-4,021.80

Finding the Fourth Proportional to 7,378.90, 10,183.17 and 4,021.80

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Solution

The fourth proportional to 7,378.90, 10,183.17 and 4,021.80 is: 5,550.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,378.90 : 10,183.17 = 4,021.80 : x
  2. Step 2: Convert to fraction form
    7,378.90/10,183.17 = 4,021.80/x
  3. Step 3: Cross multiply
    7,378.90x = 10,183.17 × 4,021.80
  4. Step 4: Simplify right side
    7,378.90x = 40,954,684.66
  5. Step 5: Solve for x
    x = 40,954,684.66/7,378.90
  6. Step 6: Final answer
    x = 5,550.24

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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.