Home / 3,260-4,890.08-1,180.20

Finding the Fourth Proportional to 3,260, 4,890.08 and 1,180.20

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Solution

The fourth proportional to 3,260, 4,890.08 and 1,180.20 is: 1,770.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,260 : 4,890.08 = 1,180.20 : x
  2. Step 2: Convert to fraction form
    3,260/4,890.08 = 1,180.20/x
  3. Step 3: Cross multiply
    3,260x = 4,890.08 × 1,180.20
  4. Step 4: Simplify right side
    3,260x = 5,771,272.42
  5. Step 5: Solve for x
    x = 5,771,272.42/3,260
  6. Step 6: Final answer
    x = 1,770.33

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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.