Home / 1,419.51-2,126.84-1,145.73

Finding the Fourth Proportional to 1,419.51, 2,126.84 and 1,145.73

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Solution

The fourth proportional to 1,419.51, 2,126.84 and 1,145.73 is: 1,716.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419.51 : 2,126.84 = 1,145.73 : x
  2. Step 2: Convert to fraction form
    1,419.51/2,126.84 = 1,145.73/x
  3. Step 3: Cross multiply
    1,419.51x = 2,126.84 × 1,145.73
  4. Step 4: Simplify right side
    1,419.51x = 2,436,778.66
  5. Step 5: Solve for x
    x = 2,436,778.66/1,419.51
  6. Step 6: Final answer
    x = 1,716.63

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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.