Home / 3,840.62-5,762.32-1,342.18

Finding the Fourth Proportional to 3,840.62, 5,762.32 and 1,342.18

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Solution

The fourth proportional to 3,840.62, 5,762.32 and 1,342.18 is: 2,013.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.62 : 5,762.32 = 1,342.18 : x
  2. Step 2: Convert to fraction form
    3,840.62/5,762.32 = 1,342.18/x
  3. Step 3: Cross multiply
    3,840.62x = 5,762.32 × 1,342.18
  4. Step 4: Simplify right side
    3,840.62x = 7,734,065.85
  5. Step 5: Solve for x
    x = 7,734,065.85/3,840.62
  6. Step 6: Final answer
    x = 2,013.75

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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.