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Finding the Fourth Proportional to 3,259, 4,888.58 and 1,179.20

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Solution

The fourth proportional to 3,259, 4,888.58 and 1,179.20 is: 1,768.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,259 : 4,888.58 = 1,179.20 : x
  2. Step 2: Convert to fraction form
    3,259/4,888.58 = 1,179.20/x
  3. Step 3: Cross multiply
    3,259x = 4,888.58 × 1,179.20
  4. Step 4: Simplify right side
    3,259x = 5,764,613.54
  5. Step 5: Solve for x
    x = 5,764,613.54/3,259
  6. Step 6: Final answer
    x = 1,768.83

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1.5x scale

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.