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Finding the Fourth Proportional to 1,684.93, 2,324.73 and 976.63

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Solution

The fourth proportional to 1,684.93, 2,324.73 and 976.63 is: 1,347.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,684.93 : 2,324.73 = 976.63 : x
  2. Step 2: Convert to fraction form
    1,684.93/2,324.73 = 976.63/x
  3. Step 3: Cross multiply
    1,684.93x = 2,324.73 × 976.63
  4. Step 4: Simplify right side
    1,684.93x = 2,270,410.07
  5. Step 5: Solve for x
    x = 2,270,410.07/1,684.93
  6. Step 6: Final answer
    x = 1,347.48

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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.