Home / 1,971.23-2,719.94-1,214.73

Finding the Fourth Proportional to 1,971.23, 2,719.94 and 1,214.73

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Solution

The fourth proportional to 1,971.23, 2,719.94 and 1,214.73 is: 1,676.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971.23 : 2,719.94 = 1,214.73 : x
  2. Step 2: Convert to fraction form
    1,971.23/2,719.94 = 1,214.73/x
  3. Step 3: Cross multiply
    1,971.23x = 2,719.94 × 1,214.73
  4. Step 4: Simplify right side
    1,971.23x = 3,303,986.64
  5. Step 5: Solve for x
    x = 3,303,986.64/1,971.23
  6. Step 6: Final answer
    x = 1,676.11

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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.