Home / 3,021.27-4,538.81-2,145.93

Finding the Fourth Proportional to 3,021.27, 4,538.81 and 2,145.93

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Solution

The fourth proportional to 3,021.27, 4,538.81 and 2,145.93 is: 3,223.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.27 : 4,538.81 = 2,145.93 : x
  2. Step 2: Convert to fraction form
    3,021.27/4,538.81 = 2,145.93/x
  3. Step 3: Cross multiply
    3,021.27x = 4,538.81 × 2,145.93
  4. Step 4: Simplify right side
    3,021.27x = 9,739,968.54
  5. Step 5: Solve for x
    x = 9,739,968.54/3,021.27
  6. Step 6: Final answer
    x = 3,223.80

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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.