Home / 3,370.36-5,055.30-1,422.38

Finding the Fourth Proportional to 3,370.36, 5,055.30 and 1,422.38

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Solution

The fourth proportional to 3,370.36, 5,055.30 and 1,422.38 is: 2,133.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,370.36 : 5,055.30 = 1,422.38 : x
  2. Step 2: Convert to fraction form
    3,370.36/5,055.30 = 1,422.38/x
  3. Step 3: Cross multiply
    3,370.36x = 5,055.30 × 1,422.38
  4. Step 4: Simplify right side
    3,370.36x = 7,190,532.34
  5. Step 5: Solve for x
    x = 7,190,532.34/3,370.36
  6. Step 6: Final answer
    x = 2,133.46

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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.