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Finding the Fourth Proportional to 3,322.89, 4,973.81 and 1,857.60

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Solution

The fourth proportional to 3,322.89, 4,973.81 and 1,857.60 is: 2,780.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,322.89 : 4,973.81 = 1,857.60 : x
  2. Step 2: Convert to fraction form
    3,322.89/4,973.81 = 1,857.60/x
  3. Step 3: Cross multiply
    3,322.89x = 4,973.81 × 1,857.60
  4. Step 4: Simplify right side
    3,322.89x = 9,239,340.17
  5. Step 5: Solve for x
    x = 9,239,340.17/3,322.89
  6. Step 6: Final answer
    x = 2,780.51

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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.