Home / 5,231.57-7,847.37-1,771.25

Finding the Fourth Proportional to 5,231.57, 7,847.37 and 1,771.25

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Solution

The fourth proportional to 5,231.57, 7,847.37 and 1,771.25 is: 2,656.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.57 : 7,847.37 = 1,771.25 : x
  2. Step 2: Convert to fraction form
    5,231.57/7,847.37 = 1,771.25/x
  3. Step 3: Cross multiply
    5,231.57x = 7,847.37 × 1,771.25
  4. Step 4: Simplify right side
    5,231.57x = 13,899,614.88
  5. Step 5: Solve for x
    x = 13,899,614.88/5,231.57
  6. Step 6: Final answer
    x = 2,656.88

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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.