Home / 2,021.06-2,789.85-1,274.87

Finding the Fourth Proportional to 2,021.06, 2,789.85 and 1,274.87

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Solution

The fourth proportional to 2,021.06, 2,789.85 and 1,274.87 is: 1,759.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.06 : 2,789.85 = 1,274.87 : x
  2. Step 2: Convert to fraction form
    2,021.06/2,789.85 = 1,274.87/x
  3. Step 3: Cross multiply
    2,021.06x = 2,789.85 × 1,274.87
  4. Step 4: Simplify right side
    2,021.06x = 3,556,696.07
  5. Step 5: Solve for x
    x = 3,556,696.07/2,021.06
  6. Step 6: Final answer
    x = 1,759.82

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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.