Home / 3,134.06-4,700.40-942.20

Finding the Fourth Proportional to 3,134.06, 4,700.40 and 942.20

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Solution

The fourth proportional to 3,134.06, 4,700.40 and 942.20 is: 1,413.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,134.06 : 4,700.40 = 942.20 : x
  2. Step 2: Convert to fraction form
    3,134.06/4,700.40 = 942.20/x
  3. Step 3: Cross multiply
    3,134.06x = 4,700.40 × 942.20
  4. Step 4: Simplify right side
    3,134.06x = 4,428,716.88
  5. Step 5: Solve for x
    x = 4,428,716.88/3,134.06
  6. Step 6: Final answer
    x = 1,413.09

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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.