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Finding the Fourth Proportional to 2,994.68, 4,491.79 and 1,239.23

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Solution

The fourth proportional to 2,994.68, 4,491.79 and 1,239.23 is: 1,858.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,994.68 : 4,491.79 = 1,239.23 : x
  2. Step 2: Convert to fraction form
    2,994.68/4,491.79 = 1,239.23/x
  3. Step 3: Cross multiply
    2,994.68x = 4,491.79 × 1,239.23
  4. Step 4: Simplify right side
    2,994.68x = 5,566,369.05
  5. Step 5: Solve for x
    x = 5,566,369.05/2,994.68
  6. Step 6: Final answer
    x = 1,858.75

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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.