Home / 4,921.08-7,383.60-2,455.80

Finding the Fourth Proportional to 4,921.08, 7,383.60 and 2,455.80

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Solution

The fourth proportional to 4,921.08, 7,383.60 and 2,455.80 is: 3,684.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.08 : 7,383.60 = 2,455.80 : x
  2. Step 2: Convert to fraction form
    4,921.08/7,383.60 = 2,455.80/x
  3. Step 3: Cross multiply
    4,921.08x = 7,383.60 × 2,455.80
  4. Step 4: Simplify right side
    4,921.08x = 18,132,644.88
  5. Step 5: Solve for x
    x = 18,132,644.88/4,921.08
  6. Step 6: Final answer
    x = 3,684.69

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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.