Home / 1,940.22-2,679.63-1,571.22

Finding the Fourth Proportional to 1,940.22, 2,679.63 and 1,571.22

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Solution

The fourth proportional to 1,940.22, 2,679.63 and 1,571.22 is: 2,170.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940.22 : 2,679.63 = 1,571.22 : x
  2. Step 2: Convert to fraction form
    1,940.22/2,679.63 = 1,571.22/x
  3. Step 3: Cross multiply
    1,940.22x = 2,679.63 × 1,571.22
  4. Step 4: Simplify right side
    1,940.22x = 4,210,288.25
  5. Step 5: Solve for x
    x = 4,210,288.25/1,940.22
  6. Step 6: Final answer
    x = 2,170.01

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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.