Home / 2,104.05-2,902.13-1,357.77

Finding the Fourth Proportional to 2,104.05, 2,902.13 and 1,357.77

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Solution

The fourth proportional to 2,104.05, 2,902.13 and 1,357.77 is: 1,872.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,104.05 : 2,902.13 = 1,357.77 : x
  2. Step 2: Convert to fraction form
    2,104.05/2,902.13 = 1,357.77/x
  3. Step 3: Cross multiply
    2,104.05x = 2,902.13 × 1,357.77
  4. Step 4: Simplify right side
    2,104.05x = 3,940,418.26
  5. Step 5: Solve for x
    x = 3,940,418.26/2,104.05
  6. Step 6: Final answer
    x = 1,872.78

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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.