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Finding the Fourth Proportional to 5,919.60, 8,879.52 and 1,759.64

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Solution

The fourth proportional to 5,919.60, 8,879.52 and 1,759.64 is: 2,639.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,919.60 : 8,879.52 = 1,759.64 : x
  2. Step 2: Convert to fraction form
    5,919.60/8,879.52 = 1,759.64/x
  3. Step 3: Cross multiply
    5,919.60x = 8,879.52 × 1,759.64
  4. Step 4: Simplify right side
    5,919.60x = 15,624,758.57
  5. Step 5: Solve for x
    x = 15,624,758.57/5,919.60
  6. Step 6: Final answer
    x = 2,639.50

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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.