Home / 5,157.32-7,735.97-1,261.69

Finding the Fourth Proportional to 5,157.32, 7,735.97 and 1,261.69

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Solution

The fourth proportional to 5,157.32, 7,735.97 and 1,261.69 is: 1,892.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.32 : 7,735.97 = 1,261.69 : x
  2. Step 2: Convert to fraction form
    5,157.32/7,735.97 = 1,261.69/x
  3. Step 3: Cross multiply
    5,157.32x = 7,735.97 × 1,261.69
  4. Step 4: Simplify right side
    5,157.32x = 9,760,379.80
  5. Step 5: Solve for x
    x = 9,760,379.80/5,157.32
  6. Step 6: Final answer
    x = 1,892.53

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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.