Home / 2,021.04-2,788.72-1,275.41

Finding the Fourth Proportional to 2,021.04, 2,788.72 and 1,275.41

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Solution

The fourth proportional to 2,021.04, 2,788.72 and 1,275.41 is: 1,759.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.04 : 2,788.72 = 1,275.41 : x
  2. Step 2: Convert to fraction form
    2,021.04/2,788.72 = 1,275.41/x
  3. Step 3: Cross multiply
    2,021.04x = 2,788.72 × 1,275.41
  4. Step 4: Simplify right side
    2,021.04x = 3,556,761.38
  5. Step 5: Solve for x
    x = 3,556,761.38/2,021.04
  6. Step 6: Final answer
    x = 1,759.87

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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.