Home / 3,028-4,538.76-1,272.57

Finding the Fourth Proportional to 3,028, 4,538.76 and 1,272.57

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Solution

The fourth proportional to 3,028, 4,538.76 and 1,272.57 is: 1,907.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,028 : 4,538.76 = 1,272.57 : x
  2. Step 2: Convert to fraction form
    3,028/4,538.76 = 1,272.57/x
  3. Step 3: Cross multiply
    3,028x = 4,538.76 × 1,272.57
  4. Step 4: Simplify right side
    3,028x = 5,775,889.81
  5. Step 5: Solve for x
    x = 5,775,889.81/3,028
  6. Step 6: Final answer
    x = 1,907.49

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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.