Home / 1,993.41-2,749.70-1,285.02

Finding the Fourth Proportional to 1,993.41, 2,749.70 and 1,285.02

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Solution

The fourth proportional to 1,993.41, 2,749.70 and 1,285.02 is: 1,772.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993.41 : 2,749.70 = 1,285.02 : x
  2. Step 2: Convert to fraction form
    1,993.41/2,749.70 = 1,285.02/x
  3. Step 3: Cross multiply
    1,993.41x = 2,749.70 × 1,285.02
  4. Step 4: Simplify right side
    1,993.41x = 3,533,419.49
  5. Step 5: Solve for x
    x = 3,533,419.49/1,993.41
  6. Step 6: Final answer
    x = 1,772.55

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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.