Home / 3,260.44-4,890.88-1,312.64

Finding the Fourth Proportional to 3,260.44, 4,890.88 and 1,312.64

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Solution

The fourth proportional to 3,260.44, 4,890.88 and 1,312.64 is: 1,969.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,260.44 : 4,890.88 = 1,312.64 : x
  2. Step 2: Convert to fraction form
    3,260.44/4,890.88 = 1,312.64/x
  3. Step 3: Cross multiply
    3,260.44x = 4,890.88 × 1,312.64
  4. Step 4: Simplify right side
    3,260.44x = 6,419,964.72
  5. Step 5: Solve for x
    x = 6,419,964.72/3,260.44
  6. Step 6: Final answer
    x = 1,969.05

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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.