Home / 5,129.36-7,693.35-1,431.27

Finding the Fourth Proportional to 5,129.36, 7,693.35 and 1,431.27

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Solution

The fourth proportional to 5,129.36, 7,693.35 and 1,431.27 is: 2,146.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129.36 : 7,693.35 = 1,431.27 : x
  2. Step 2: Convert to fraction form
    5,129.36/7,693.35 = 1,431.27/x
  3. Step 3: Cross multiply
    5,129.36x = 7,693.35 × 1,431.27
  4. Step 4: Simplify right side
    5,129.36x = 11,011,261.05
  5. Step 5: Solve for x
    x = 11,011,261.05/5,129.36
  6. Step 6: Final answer
    x = 2,146.71

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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.