Home / 2,072.23-3,108.57-611.38

Finding the Fourth Proportional to 2,072.23, 3,108.57 and 611.38

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Solution

The fourth proportional to 2,072.23, 3,108.57 and 611.38 is: 917.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,072.23 : 3,108.57 = 611.38 : x
  2. Step 2: Convert to fraction form
    2,072.23/3,108.57 = 611.38/x
  3. Step 3: Cross multiply
    2,072.23x = 3,108.57 × 611.38
  4. Step 4: Simplify right side
    2,072.23x = 1,900,516.00
  5. Step 5: Solve for x
    x = 1,900,516.00/2,072.23
  6. Step 6: Final answer
    x = 917.14

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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.