Home / 5,183.36-7,775.58-1,720.88

Finding the Fourth Proportional to 5,183.36, 7,775.58 and 1,720.88

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Solution

The fourth proportional to 5,183.36, 7,775.58 and 1,720.88 is: 2,581.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,183.36 : 7,775.58 = 1,720.88 : x
  2. Step 2: Convert to fraction form
    5,183.36/7,775.58 = 1,720.88/x
  3. Step 3: Cross multiply
    5,183.36x = 7,775.58 × 1,720.88
  4. Step 4: Simplify right side
    5,183.36x = 13,380,840.11
  5. Step 5: Solve for x
    x = 13,380,840.11/5,183.36
  6. Step 6: Final answer
    x = 2,581.50

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Double scale
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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.