Home / 5,187.96-7,775.46-2,591.64

Finding the Fourth Proportional to 5,187.96, 7,775.46 and 2,591.64

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Solution

The fourth proportional to 5,187.96, 7,775.46 and 2,591.64 is: 3,884.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.96 : 7,775.46 = 2,591.64 : x
  2. Step 2: Convert to fraction form
    5,187.96/7,775.46 = 2,591.64/x
  3. Step 3: Cross multiply
    5,187.96x = 7,775.46 × 2,591.64
  4. Step 4: Simplify right side
    5,187.96x = 20,151,193.15
  5. Step 5: Solve for x
    x = 20,151,193.15/5,187.96
  6. Step 6: Final answer
    x = 3,884.22

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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.