Home / 3,657.12-5,481.84-1,925.28

Finding the Fourth Proportional to 3,657.12, 5,481.84 and 1,925.28

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Solution

The fourth proportional to 3,657.12, 5,481.84 and 1,925.28 is: 2,885.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,657.12 : 5,481.84 = 1,925.28 : x
  2. Step 2: Convert to fraction form
    3,657.12/5,481.84 = 1,925.28/x
  3. Step 3: Cross multiply
    3,657.12x = 5,481.84 × 1,925.28
  4. Step 4: Simplify right side
    3,657.12x = 10,554,076.92
  5. Step 5: Solve for x
    x = 10,554,076.92/3,657.12
  6. Step 6: Final answer
    x = 2,885.90

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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.