Home / 4,791.98-7,188.28-1,505.21

Finding the Fourth Proportional to 4,791.98, 7,188.28 and 1,505.21

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Solution

The fourth proportional to 4,791.98, 7,188.28 and 1,505.21 is: 2,257.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,791.98 : 7,188.28 = 1,505.21 : x
  2. Step 2: Convert to fraction form
    4,791.98/7,188.28 = 1,505.21/x
  3. Step 3: Cross multiply
    4,791.98x = 7,188.28 × 1,505.21
  4. Step 4: Simplify right side
    4,791.98x = 10,819,831.23
  5. Step 5: Solve for x
    x = 10,819,831.23/4,791.98
  6. Step 6: Final answer
    x = 2,257.90

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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.