Home / 5,623.50-8,435.49-3,981.90

Finding the Fourth Proportional to 5,623.50, 8,435.49 and 3,981.90

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Solution

The fourth proportional to 5,623.50, 8,435.49 and 3,981.90 is: 5,973.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,623.50 : 8,435.49 = 3,981.90 : x
  2. Step 2: Convert to fraction form
    5,623.50/8,435.49 = 3,981.90/x
  3. Step 3: Cross multiply
    5,623.50x = 8,435.49 × 3,981.90
  4. Step 4: Simplify right side
    5,623.50x = 33,589,277.63
  5. Step 5: Solve for x
    x = 33,589,277.63/5,623.50
  6. Step 6: Final answer
    x = 5,973.02

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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.