Home / 2,914.70-4,021.92-2,127.38

Finding the Fourth Proportional to 2,914.70, 4,021.92 and 2,127.38

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Solution

The fourth proportional to 2,914.70, 4,021.92 and 2,127.38 is: 2,935.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,914.70 : 4,021.92 = 2,127.38 : x
  2. Step 2: Convert to fraction form
    2,914.70/4,021.92 = 2,127.38/x
  3. Step 3: Cross multiply
    2,914.70x = 4,021.92 × 2,127.38
  4. Step 4: Simplify right side
    2,914.70x = 8,556,132.06
  5. Step 5: Solve for x
    x = 8,556,132.06/2,914.70
  6. Step 6: Final answer
    x = 2,935.52

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1.5x scale

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.