Home / 3,840.75-5,762.07-1,243.76

Finding the Fourth Proportional to 3,840.75, 5,762.07 and 1,243.76

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Solution

The fourth proportional to 3,840.75, 5,762.07 and 1,243.76 is: 1,865.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.75 : 5,762.07 = 1,243.76 : x
  2. Step 2: Convert to fraction form
    3,840.75/5,762.07 = 1,243.76/x
  3. Step 3: Cross multiply
    3,840.75x = 5,762.07 × 1,243.76
  4. Step 4: Simplify right side
    3,840.75x = 7,166,603.37
  5. Step 5: Solve for x
    x = 7,166,603.37/3,840.75
  6. Step 6: Final answer
    x = 1,865.94

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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.