Home / 3,271.40-4,906.40-1,079.60

Finding the Fourth Proportional to 3,271.40, 4,906.40 and 1,079.60

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Solution

The fourth proportional to 3,271.40, 4,906.40 and 1,079.60 is: 1,619.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,271.40 : 4,906.40 = 1,079.60 : x
  2. Step 2: Convert to fraction form
    3,271.40/4,906.40 = 1,079.60/x
  3. Step 3: Cross multiply
    3,271.40x = 4,906.40 × 1,079.60
  4. Step 4: Simplify right side
    3,271.40x = 5,296,956.31
  5. Step 5: Solve for x
    x = 5,296,956.31/3,271.40
  6. Step 6: Final answer
    x = 1,619.17

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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.