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Finding the Fourth Proportional to 1,784.23, 2,462.22 and 998.27

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Solution

The fourth proportional to 1,784.23, 2,462.22 and 998.27 is: 1,377.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,784.23 : 2,462.22 = 998.27 : x
  2. Step 2: Convert to fraction form
    1,784.23/2,462.22 = 998.27/x
  3. Step 3: Cross multiply
    1,784.23x = 2,462.22 × 998.27
  4. Step 4: Simplify right side
    1,784.23x = 2,457,957.28
  5. Step 5: Solve for x
    x = 2,457,957.28/1,784.23
  6. Step 6: Final answer
    x = 1,377.60

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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.