Home / 2,021-2,789.48-1,235.71

Finding the Fourth Proportional to 2,021, 2,789.48 and 1,235.71

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Solution

The fourth proportional to 2,021, 2,789.48 and 1,235.71 is: 1,705.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021 : 2,789.48 = 1,235.71 : x
  2. Step 2: Convert to fraction form
    2,021/2,789.48 = 1,235.71/x
  3. Step 3: Cross multiply
    2,021x = 2,789.48 × 1,235.71
  4. Step 4: Simplify right side
    2,021x = 3,446,988.33
  5. Step 5: Solve for x
    x = 3,446,988.33/2,021
  6. Step 6: Final answer
    x = 1,705.59

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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.