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Finding the Fourth Proportional to 1,495.48, 2,062.92 and 905.80

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Solution

The fourth proportional to 1,495.48, 2,062.92 and 905.80 is: 1,249.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,495.48 : 2,062.92 = 905.80 : x
  2. Step 2: Convert to fraction form
    1,495.48/2,062.92 = 905.80/x
  3. Step 3: Cross multiply
    1,495.48x = 2,062.92 × 905.80
  4. Step 4: Simplify right side
    1,495.48x = 1,868,592.94
  5. Step 5: Solve for x
    x = 1,868,592.94/1,495.48
  6. Step 6: Final answer
    x = 1,249.49

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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.