Home / 2,106.24-2,906.40-1,174.56

Finding the Fourth Proportional to 2,106.24, 2,906.40 and 1,174.56

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Solution

The fourth proportional to 2,106.24, 2,906.40 and 1,174.56 is: 1,620.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106.24 : 2,906.40 = 1,174.56 : x
  2. Step 2: Convert to fraction form
    2,106.24/2,906.40 = 1,174.56/x
  3. Step 3: Cross multiply
    2,106.24x = 2,906.40 × 1,174.56
  4. Step 4: Simplify right side
    2,106.24x = 3,413,741.18
  5. Step 5: Solve for x
    x = 3,413,741.18/2,106.24
  6. Step 6: Final answer
    x = 1,620.78

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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.