Home / 1,868.40-2,573.37-1,619.73

Finding the Fourth Proportional to 1,868.40, 2,573.37 and 1,619.73

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Solution

The fourth proportional to 1,868.40, 2,573.37 and 1,619.73 is: 2,230.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868.40 : 2,573.37 = 1,619.73 : x
  2. Step 2: Convert to fraction form
    1,868.40/2,573.37 = 1,619.73/x
  3. Step 3: Cross multiply
    1,868.40x = 2,573.37 × 1,619.73
  4. Step 4: Simplify right side
    1,868.40x = 4,168,164.59
  5. Step 5: Solve for x
    x = 4,168,164.59/1,868.40
  6. Step 6: Final answer
    x = 2,230.87

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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.