Home / 1,993.03-2,749.62-1,284.79

Finding the Fourth Proportional to 1,993.03, 2,749.62 and 1,284.79

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Solution

The fourth proportional to 1,993.03, 2,749.62 and 1,284.79 is: 1,772.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993.03 : 2,749.62 = 1,284.79 : x
  2. Step 2: Convert to fraction form
    1,993.03/2,749.62 = 1,284.79/x
  3. Step 3: Cross multiply
    1,993.03x = 2,749.62 × 1,284.79
  4. Step 4: Simplify right side
    1,993.03x = 3,532,684.28
  5. Step 5: Solve for x
    x = 3,532,684.28/1,993.03
  6. Step 6: Final answer
    x = 1,772.52

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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.