Home / 2,145.23-3,212.21-1,726.54

Finding the Fourth Proportional to 2,145.23, 3,212.21 and 1,726.54

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Solution

The fourth proportional to 2,145.23, 3,212.21 and 1,726.54 is: 2,585.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145.23 : 3,212.21 = 1,726.54 : x
  2. Step 2: Convert to fraction form
    2,145.23/3,212.21 = 1,726.54/x
  3. Step 3: Cross multiply
    2,145.23x = 3,212.21 × 1,726.54
  4. Step 4: Simplify right side
    2,145.23x = 5,546,009.05
  5. Step 5: Solve for x
    x = 5,546,009.05/2,145.23
  6. Step 6: Final answer
    x = 2,585.27

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1.5x scale

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.