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Finding the Fourth Proportional to 1,297.03, 1,788.99 and 1,192.54

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Solution

The fourth proportional to 1,297.03, 1,788.99 and 1,192.54 is: 1,644.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297.03 : 1,788.99 = 1,192.54 : x
  2. Step 2: Convert to fraction form
    1,297.03/1,788.99 = 1,192.54/x
  3. Step 3: Cross multiply
    1,297.03x = 1,788.99 × 1,192.54
  4. Step 4: Simplify right side
    1,297.03x = 2,133,442.13
  5. Step 5: Solve for x
    x = 2,133,442.13/1,297.03
  6. Step 6: Final answer
    x = 1,644.87

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1.5x scale

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.