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Finding the Fourth Proportional to 1,266.35, 1,899.24 and 797.60

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Solution

The fourth proportional to 1,266.35, 1,899.24 and 797.60 is: 1,196.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266.35 : 1,899.24 = 797.60 : x
  2. Step 2: Convert to fraction form
    1,266.35/1,899.24 = 797.60/x
  3. Step 3: Cross multiply
    1,266.35x = 1,899.24 × 797.60
  4. Step 4: Simplify right side
    1,266.35x = 1,514,824.33
  5. Step 5: Solve for x
    x = 1,514,824.33/1,266.35
  6. Step 6: Final answer
    x = 1,196.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.