Home / 7,720.21-10,653.89-4,183.43

Finding the Fourth Proportional to 7,720.21, 10,653.89 and 4,183.43

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Solution

The fourth proportional to 7,720.21, 10,653.89 and 4,183.43 is: 5,773.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,720.21 : 10,653.89 = 4,183.43 : x
  2. Step 2: Convert to fraction form
    7,720.21/10,653.89 = 4,183.43/x
  3. Step 3: Cross multiply
    7,720.21x = 10,653.89 × 4,183.43
  4. Step 4: Simplify right side
    7,720.21x = 44,569,782.13
  5. Step 5: Solve for x
    x = 44,569,782.13/7,720.21
  6. Step 6: Final answer
    x = 5,773.13

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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.