Home / 3,271.57-4,907.40-1,080.25

Finding the Fourth Proportional to 3,271.57, 4,907.40 and 1,080.25

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Solution

The fourth proportional to 3,271.57, 4,907.40 and 1,080.25 is: 1,620.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,271.57 : 4,907.40 = 1,080.25 : x
  2. Step 2: Convert to fraction form
    3,271.57/4,907.40 = 1,080.25/x
  3. Step 3: Cross multiply
    3,271.57x = 4,907.40 × 1,080.25
  4. Step 4: Simplify right side
    3,271.57x = 5,301,218.85
  5. Step 5: Solve for x
    x = 5,301,218.85/3,271.57
  6. Step 6: Final answer
    x = 1,620.39

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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.