Home / 5,623.80-8,435.70-3,982.20

Finding the Fourth Proportional to 5,623.80, 8,435.70 and 3,982.20

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Solution

The fourth proportional to 5,623.80, 8,435.70 and 3,982.20 is: 5,973.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,623.80 : 8,435.70 = 3,982.20 : x
  2. Step 2: Convert to fraction form
    5,623.80/8,435.70 = 3,982.20/x
  3. Step 3: Cross multiply
    5,623.80x = 8,435.70 × 3,982.20
  4. Step 4: Simplify right side
    5,623.80x = 33,592,644.54
  5. Step 5: Solve for x
    x = 33,592,644.54/5,623.80
  6. Step 6: Final answer
    x = 5,973.30

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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.