Home / 3,394.80-5,090.40-1,203.21

Finding the Fourth Proportional to 3,394.80, 5,090.40 and 1,203.21

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Solution

The fourth proportional to 3,394.80, 5,090.40 and 1,203.21 is: 1,804.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,394.80 : 5,090.40 = 1,203.21 : x
  2. Step 2: Convert to fraction form
    3,394.80/5,090.40 = 1,203.21/x
  3. Step 3: Cross multiply
    3,394.80x = 5,090.40 × 1,203.21
  4. Step 4: Simplify right side
    3,394.80x = 6,124,820.18
  5. Step 5: Solve for x
    x = 6,124,820.18/3,394.80
  6. Step 6: Final answer
    x = 1,804.18

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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.