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Finding the Fourth Proportional to 1,934.87, 2,672.33 and 1,274.67

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Solution

The fourth proportional to 1,934.87, 2,672.33 and 1,274.67 is: 1,760.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,934.87 : 2,672.33 = 1,274.67 : x
  2. Step 2: Convert to fraction form
    1,934.87/2,672.33 = 1,274.67/x
  3. Step 3: Cross multiply
    1,934.87x = 2,672.33 × 1,274.67
  4. Step 4: Simplify right side
    1,934.87x = 3,406,338.88
  5. Step 5: Solve for x
    x = 3,406,338.88/1,934.87
  6. Step 6: Final answer
    x = 1,760.50

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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.