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Finding the Fourth Proportional to 3,112.94, 4,669.41 and 804.62

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Solution

The fourth proportional to 3,112.94, 4,669.41 and 804.62 is: 1,206.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.94 : 4,669.41 = 804.62 : x
  2. Step 2: Convert to fraction form
    3,112.94/4,669.41 = 804.62/x
  3. Step 3: Cross multiply
    3,112.94x = 4,669.41 × 804.62
  4. Step 4: Simplify right side
    3,112.94x = 3,757,100.67
  5. Step 5: Solve for x
    x = 3,757,100.67/3,112.94
  6. Step 6: Final answer
    x = 1,206.93

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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.