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Finding the Fourth Proportional to 1,334.67, 1,992.37 and 1,274.76

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Solution

The fourth proportional to 1,334.67, 1,992.37 and 1,274.76 is: 1,902.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,334.67 : 1,992.37 = 1,274.76 : x
  2. Step 2: Convert to fraction form
    1,334.67/1,992.37 = 1,274.76/x
  3. Step 3: Cross multiply
    1,334.67x = 1,992.37 × 1,274.76
  4. Step 4: Simplify right side
    1,334.67x = 2,539,793.58
  5. Step 5: Solve for x
    x = 2,539,793.58/1,334.67
  6. Step 6: Final answer
    x = 1,902.94

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1.5x scale

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.