Home / 3,840.77-5,768.46-2,390.06

Finding the Fourth Proportional to 3,840.77, 5,768.46 and 2,390.06

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Solution

The fourth proportional to 3,840.77, 5,768.46 and 2,390.06 is: 3,589.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.77 : 5,768.46 = 2,390.06 : x
  2. Step 2: Convert to fraction form
    3,840.77/5,768.46 = 2,390.06/x
  3. Step 3: Cross multiply
    3,840.77x = 5,768.46 × 2,390.06
  4. Step 4: Simplify right side
    3,840.77x = 13,786,979.93
  5. Step 5: Solve for x
    x = 13,786,979.93/3,840.77
  6. Step 6: Final answer
    x = 3,589.64

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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.