Home / 5,321.44-7,982.50-1,623.80

Finding the Fourth Proportional to 5,321.44, 7,982.50 and 1,623.80

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Solution

The fourth proportional to 5,321.44, 7,982.50 and 1,623.80 is: 2,435.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,321.44 : 7,982.50 = 1,623.80 : x
  2. Step 2: Convert to fraction form
    5,321.44/7,982.50 = 1,623.80/x
  3. Step 3: Cross multiply
    5,321.44x = 7,982.50 × 1,623.80
  4. Step 4: Simplify right side
    5,321.44x = 12,961,983.50
  5. Step 5: Solve for x
    x = 12,961,983.50/5,321.44
  6. Step 6: Final answer
    x = 2,435.80

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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.