Home / 5,112.24-7,052.80-3,122

Finding the Fourth Proportional to 5,112.24, 7,052.80 and 3,122

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Solution

The fourth proportional to 5,112.24, 7,052.80 and 3,122 is: 4,307.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112.24 : 7,052.80 = 3,122 : x
  2. Step 2: Convert to fraction form
    5,112.24/7,052.80 = 3,122/x
  3. Step 3: Cross multiply
    5,112.24x = 7,052.80 × 3,122
  4. Step 4: Simplify right side
    5,112.24x = 22,018,841.60
  5. Step 5: Solve for x
    x = 22,018,841.60/5,112.24
  6. Step 6: Final answer
    x = 4,307.08

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.