Home / 7,720.15-10,653.81-4,183.35

Finding the Fourth Proportional to 7,720.15, 10,653.81 and 4,183.35

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Solution

The fourth proportional to 7,720.15, 10,653.81 and 4,183.35 is: 5,773.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,720.15 : 10,653.81 = 4,183.35 : x
  2. Step 2: Convert to fraction form
    7,720.15/10,653.81 = 4,183.35/x
  3. Step 3: Cross multiply
    7,720.15x = 10,653.81 × 4,183.35
  4. Step 4: Simplify right side
    7,720.15x = 44,568,616.06
  5. Step 5: Solve for x
    x = 44,568,616.06/7,720.15
  6. Step 6: Final answer
    x = 5,773.02

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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.