Home / 1,308.48-1,964.88-1,183.20

Finding the Fourth Proportional to 1,308.48, 1,964.88 and 1,183.20

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Solution

The fourth proportional to 1,308.48, 1,964.88 and 1,183.20 is: 1,776.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308.48 : 1,964.88 = 1,183.20 : x
  2. Step 2: Convert to fraction form
    1,308.48/1,964.88 = 1,183.20/x
  3. Step 3: Cross multiply
    1,308.48x = 1,964.88 × 1,183.20
  4. Step 4: Simplify right side
    1,308.48x = 2,324,846.02
  5. Step 5: Solve for x
    x = 2,324,846.02/1,308.48
  6. Step 6: Final answer
    x = 1,776.75

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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.