Home / 5,207.31-7,185.94-2,849.40

Finding the Fourth Proportional to 5,207.31, 7,185.94 and 2,849.40

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Solution

The fourth proportional to 5,207.31, 7,185.94 and 2,849.40 is: 3,932.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,207.31 : 7,185.94 = 2,849.40 : x
  2. Step 2: Convert to fraction form
    5,207.31/7,185.94 = 2,849.40/x
  3. Step 3: Cross multiply
    5,207.31x = 7,185.94 × 2,849.40
  4. Step 4: Simplify right side
    5,207.31x = 20,475,617.44
  5. Step 5: Solve for x
    x = 20,475,617.44/5,207.31
  6. Step 6: Final answer
    x = 3,932.09

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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.