Home / 3,840.56-5,292.60-2,734.64

Finding the Fourth Proportional to 3,840.56, 5,292.60 and 2,734.64

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Solution

The fourth proportional to 3,840.56, 5,292.60 and 2,734.64 is: 3,768.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.56 : 5,292.60 = 2,734.64 : x
  2. Step 2: Convert to fraction form
    3,840.56/5,292.60 = 2,734.64/x
  3. Step 3: Cross multiply
    3,840.56x = 5,292.60 × 2,734.64
  4. Step 4: Simplify right side
    3,840.56x = 14,473,355.66
  5. Step 5: Solve for x
    x = 14,473,355.66/3,840.56
  6. Step 6: Final answer
    x = 3,768.55

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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.