Home / 5,622.15-8,420.43-3,426.03

Finding the Fourth Proportional to 5,622.15, 8,420.43 and 3,426.03

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Solution

The fourth proportional to 5,622.15, 8,420.43 and 3,426.03 is: 5,131.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,622.15 : 8,420.43 = 3,426.03 : x
  2. Step 2: Convert to fraction form
    5,622.15/8,420.43 = 3,426.03/x
  3. Step 3: Cross multiply
    5,622.15x = 8,420.43 × 3,426.03
  4. Step 4: Simplify right side
    5,622.15x = 28,848,645.79
  5. Step 5: Solve for x
    x = 28,848,645.79/5,622.15
  6. Step 6: Final answer
    x = 5,131.25

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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.