Home / 6,431.51-9,659.15-3,850.31

Finding the Fourth Proportional to 6,431.51, 9,659.15 and 3,850.31

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Solution

The fourth proportional to 6,431.51, 9,659.15 and 3,850.31 is: 5,782.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,431.51 : 9,659.15 = 3,850.31 : x
  2. Step 2: Convert to fraction form
    6,431.51/9,659.15 = 3,850.31/x
  3. Step 3: Cross multiply
    6,431.51x = 9,659.15 × 3,850.31
  4. Step 4: Simplify right side
    6,431.51x = 37,190,741.17
  5. Step 5: Solve for x
    x = 37,190,741.17/6,431.51
  6. Step 6: Final answer
    x = 5,782.58

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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.