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Finding the Fourth Proportional to 1,844.70, 2,766.33 and 690.54

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Solution

The fourth proportional to 1,844.70, 2,766.33 and 690.54 is: 1,035.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,844.70 : 2,766.33 = 690.54 : x
  2. Step 2: Convert to fraction form
    1,844.70/2,766.33 = 690.54/x
  3. Step 3: Cross multiply
    1,844.70x = 2,766.33 × 690.54
  4. Step 4: Simplify right side
    1,844.70x = 1,910,261.52
  5. Step 5: Solve for x
    x = 1,910,261.52/1,844.70
  6. Step 6: Final answer
    x = 1,035.54

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1.5x scale

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.