Home / 3,270.40-4,905.76-1,079.32

Finding the Fourth Proportional to 3,270.40, 4,905.76 and 1,079.32

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Solution

The fourth proportional to 3,270.40, 4,905.76 and 1,079.32 is: 1,619.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,270.40 : 4,905.76 = 1,079.32 : x
  2. Step 2: Convert to fraction form
    3,270.40/4,905.76 = 1,079.32/x
  3. Step 3: Cross multiply
    3,270.40x = 4,905.76 × 1,079.32
  4. Step 4: Simplify right side
    3,270.40x = 5,294,884.88
  5. Step 5: Solve for x
    x = 5,294,884.88/3,270.40
  6. Step 6: Final answer
    x = 1,619.03

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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.