Home / 1,897.74-2,619-1,151.73

Finding the Fourth Proportional to 1,897.74, 2,619 and 1,151.73

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Solution

The fourth proportional to 1,897.74, 2,619 and 1,151.73 is: 1,589.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,897.74 : 2,619 = 1,151.73 : x
  2. Step 2: Convert to fraction form
    1,897.74/2,619 = 1,151.73/x
  3. Step 3: Cross multiply
    1,897.74x = 2,619 × 1,151.73
  4. Step 4: Simplify right side
    1,897.74x = 3,016,380.87
  5. Step 5: Solve for x
    x = 3,016,380.87/1,897.74
  6. Step 6: Final answer
    x = 1,589.46

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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.