Home / 1,684.22-2,323.42-1,308.63

Finding the Fourth Proportional to 1,684.22, 2,323.42 and 1,308.63

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Solution

The fourth proportional to 1,684.22, 2,323.42 and 1,308.63 is: 1,805.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,684.22 : 2,323.42 = 1,308.63 : x
  2. Step 2: Convert to fraction form
    1,684.22/2,323.42 = 1,308.63/x
  3. Step 3: Cross multiply
    1,684.22x = 2,323.42 × 1,308.63
  4. Step 4: Simplify right side
    1,684.22x = 3,040,506.19
  5. Step 5: Solve for x
    x = 3,040,506.19/1,684.22
  6. Step 6: Final answer
    x = 1,805.29

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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.