Home / 5,157.09-7,735.61-1,261.49

Finding the Fourth Proportional to 5,157.09, 7,735.61 and 1,261.49

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Solution

The fourth proportional to 5,157.09, 7,735.61 and 1,261.49 is: 1,892.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.09 : 7,735.61 = 1,261.49 : x
  2. Step 2: Convert to fraction form
    5,157.09/7,735.61 = 1,261.49/x
  3. Step 3: Cross multiply
    5,157.09x = 7,735.61 × 1,261.49
  4. Step 4: Simplify right side
    5,157.09x = 9,758,359.13
  5. Step 5: Solve for x
    x = 9,758,359.13/5,157.09
  6. Step 6: Final answer
    x = 1,892.22

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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.