Home / 7,720.13-10,653.78-4,183.37

Finding the Fourth Proportional to 7,720.13, 10,653.78 and 4,183.37

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Solution

The fourth proportional to 7,720.13, 10,653.78 and 4,183.37 is: 5,773.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,720.13 : 10,653.78 = 4,183.37 : x
  2. Step 2: Convert to fraction form
    7,720.13/10,653.78 = 4,183.37/x
  3. Step 3: Cross multiply
    7,720.13x = 10,653.78 × 4,183.37
  4. Step 4: Simplify right side
    7,720.13x = 44,568,650.37
  5. Step 5: Solve for x
    x = 44,568,650.37/7,720.13
  6. Step 6: Final answer
    x = 5,773.05

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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.