Home / 3,383.60-4,669.28-1,891.43

Finding the Fourth Proportional to 3,383.60, 4,669.28 and 1,891.43

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Solution

The fourth proportional to 3,383.60, 4,669.28 and 1,891.43 is: 2,610.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,383.60 : 4,669.28 = 1,891.43 : x
  2. Step 2: Convert to fraction form
    3,383.60/4,669.28 = 1,891.43/x
  3. Step 3: Cross multiply
    3,383.60x = 4,669.28 × 1,891.43
  4. Step 4: Simplify right side
    3,383.60x = 8,831,597.65
  5. Step 5: Solve for x
    x = 8,831,597.65/3,383.60
  6. Step 6: Final answer
    x = 2,610.12

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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.