Home / 1,471.20-2,019.44-1,301.72

Finding the Fourth Proportional to 1,471.20, 2,019.44 and 1,301.72

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Solution

The fourth proportional to 1,471.20, 2,019.44 and 1,301.72 is: 1,786.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,471.20 : 2,019.44 = 1,301.72 : x
  2. Step 2: Convert to fraction form
    1,471.20/2,019.44 = 1,301.72/x
  3. Step 3: Cross multiply
    1,471.20x = 2,019.44 × 1,301.72
  4. Step 4: Simplify right side
    1,471.20x = 2,628,745.44
  5. Step 5: Solve for x
    x = 2,628,745.44/1,471.20
  6. Step 6: Final answer
    x = 1,786.80

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.