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Finding the Fourth Proportional to 5,919.21, 8,879.04 and 1,970.82

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Solution

The fourth proportional to 5,919.21, 8,879.04 and 1,970.82 is: 2,956.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,919.21 : 8,879.04 = 1,970.82 : x
  2. Step 2: Convert to fraction form
    5,919.21/8,879.04 = 1,970.82/x
  3. Step 3: Cross multiply
    5,919.21x = 8,879.04 × 1,970.82
  4. Step 4: Simplify right side
    5,919.21x = 17,498,989.61
  5. Step 5: Solve for x
    x = 17,498,989.61/5,919.21
  6. Step 6: Final answer
    x = 2,956.30

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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.