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Finding the Fourth Proportional to 1,673.81, 2,309.92 and 1,010.54

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Solution

The fourth proportional to 1,673.81, 2,309.92 and 1,010.54 is: 1,394.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,673.81 : 2,309.92 = 1,010.54 : x
  2. Step 2: Convert to fraction form
    1,673.81/2,309.92 = 1,010.54/x
  3. Step 3: Cross multiply
    1,673.81x = 2,309.92 × 1,010.54
  4. Step 4: Simplify right side
    1,673.81x = 2,334,266.56
  5. Step 5: Solve for x
    x = 2,334,266.56/1,673.81
  6. Step 6: Final answer
    x = 1,394.58

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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.