Home / 2,192.70-3,289.82-1,370.01

Finding the Fourth Proportional to 2,192.70, 3,289.82 and 1,370.01

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Solution

The fourth proportional to 2,192.70, 3,289.82 and 1,370.01 is: 2,055.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,192.70 : 3,289.82 = 1,370.01 : x
  2. Step 2: Convert to fraction form
    2,192.70/3,289.82 = 1,370.01/x
  3. Step 3: Cross multiply
    2,192.70x = 3,289.82 × 1,370.01
  4. Step 4: Simplify right side
    2,192.70x = 4,507,086.30
  5. Step 5: Solve for x
    x = 4,507,086.30/2,192.70
  6. Step 6: Final answer
    x = 2,055.50

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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.