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Finding the Fourth Proportional to 3,059.59, 4,589.68 and 979.07

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Solution

The fourth proportional to 3,059.59, 4,589.68 and 979.07 is: 1,468.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,059.59 : 4,589.68 = 979.07 : x
  2. Step 2: Convert to fraction form
    3,059.59/4,589.68 = 979.07/x
  3. Step 3: Cross multiply
    3,059.59x = 4,589.68 × 979.07
  4. Step 4: Simplify right side
    3,059.59x = 4,493,608.97
  5. Step 5: Solve for x
    x = 4,493,608.97/3,059.59
  6. Step 6: Final answer
    x = 1,468.70

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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.