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Finding the Fourth Proportional to 1,673.11, 2,308.92 and 927.09

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Solution

The fourth proportional to 1,673.11, 2,308.92 and 927.09 is: 1,279.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,673.11 : 2,308.92 = 927.09 : x
  2. Step 2: Convert to fraction form
    1,673.11/2,308.92 = 927.09/x
  3. Step 3: Cross multiply
    1,673.11x = 2,308.92 × 927.09
  4. Step 4: Simplify right side
    1,673.11x = 2,140,576.64
  5. Step 5: Solve for x
    x = 2,140,576.64/1,673.11
  6. Step 6: Final answer
    x = 1,279.40

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1.5x scale

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.