Home / 2,107.33-2,908.01-1,222.99

Finding the Fourth Proportional to 2,107.33, 2,908.01 and 1,222.99

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Solution

The fourth proportional to 2,107.33, 2,908.01 and 1,222.99 is: 1,687.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107.33 : 2,908.01 = 1,222.99 : x
  2. Step 2: Convert to fraction form
    2,107.33/2,908.01 = 1,222.99/x
  3. Step 3: Cross multiply
    2,107.33x = 2,908.01 × 1,222.99
  4. Step 4: Simplify right side
    2,107.33x = 3,556,446.49
  5. Step 5: Solve for x
    x = 3,556,446.49/2,107.33
  6. Step 6: Final answer
    x = 1,687.66

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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.