Home / 5,207.20-7,185.84-2,849.28

Finding the Fourth Proportional to 5,207.20, 7,185.84 and 2,849.28

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Solution

The fourth proportional to 5,207.20, 7,185.84 and 2,849.28 is: 3,931.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,207.20 : 7,185.84 = 2,849.28 : x
  2. Step 2: Convert to fraction form
    5,207.20/7,185.84 = 2,849.28/x
  3. Step 3: Cross multiply
    5,207.20x = 7,185.84 × 2,849.28
  4. Step 4: Simplify right side
    5,207.20x = 20,474,470.20
  5. Step 5: Solve for x
    x = 20,474,470.20/5,207.20
  6. Step 6: Final answer
    x = 3,931.95

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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.