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Finding the Fourth Proportional to 844.13, 1,259.75 and 751.87

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Solution

The fourth proportional to 844.13, 1,259.75 and 751.87 is: 1,122.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    844.13 : 1,259.75 = 751.87 : x
  2. Step 2: Convert to fraction form
    844.13/1,259.75 = 751.87/x
  3. Step 3: Cross multiply
    844.13x = 1,259.75 × 751.87
  4. Step 4: Simplify right side
    844.13x = 947,160.37
  5. Step 5: Solve for x
    x = 947,160.37/844.13
  6. Step 6: Final answer
    x = 1,122.06

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.