Home / 3,265.64-4,892.70-1,620.20

Finding the Fourth Proportional to 3,265.64, 4,892.70 and 1,620.20

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Solution

The fourth proportional to 3,265.64, 4,892.70 and 1,620.20 is: 2,427.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,265.64 : 4,892.70 = 1,620.20 : x
  2. Step 2: Convert to fraction form
    3,265.64/4,892.70 = 1,620.20/x
  3. Step 3: Cross multiply
    3,265.64x = 4,892.70 × 1,620.20
  4. Step 4: Simplify right side
    3,265.64x = 7,927,152.54
  5. Step 5: Solve for x
    x = 7,927,152.54/3,265.64
  6. Step 6: Final answer
    x = 2,427.44

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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.