Home / 2,110.40-2,912.48-1,214.43

Finding the Fourth Proportional to 2,110.40, 2,912.48 and 1,214.43

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Solution

The fourth proportional to 2,110.40, 2,912.48 and 1,214.43 is: 1,675.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.40 : 2,912.48 = 1,214.43 : x
  2. Step 2: Convert to fraction form
    2,110.40/2,912.48 = 1,214.43/x
  3. Step 3: Cross multiply
    2,110.40x = 2,912.48 × 1,214.43
  4. Step 4: Simplify right side
    2,110.40x = 3,537,003.09
  5. Step 5: Solve for x
    x = 3,537,003.09/2,110.40
  6. Step 6: Final answer
    x = 1,675.99

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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.