Home / 3,935.96-5,431.62-2,167.55

Finding the Fourth Proportional to 3,935.96, 5,431.62 and 2,167.55

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Solution

The fourth proportional to 3,935.96, 5,431.62 and 2,167.55 is: 2,991.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,935.96 : 5,431.62 = 2,167.55 : x
  2. Step 2: Convert to fraction form
    3,935.96/5,431.62 = 2,167.55/x
  3. Step 3: Cross multiply
    3,935.96x = 5,431.62 × 2,167.55
  4. Step 4: Simplify right side
    3,935.96x = 11,773,307.93
  5. Step 5: Solve for x
    x = 11,773,307.93/3,935.96
  6. Step 6: Final answer
    x = 2,991.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.