Home / 5,622.15-8,431.20-2,847.90

Finding the Fourth Proportional to 5,622.15, 8,431.20 and 2,847.90

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Solution

The fourth proportional to 5,622.15, 8,431.20 and 2,847.90 is: 4,270.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,622.15 : 8,431.20 = 2,847.90 : x
  2. Step 2: Convert to fraction form
    5,622.15/8,431.20 = 2,847.90/x
  3. Step 3: Cross multiply
    5,622.15x = 8,431.20 × 2,847.90
  4. Step 4: Simplify right side
    5,622.15x = 24,011,214.48
  5. Step 5: Solve for x
    x = 24,011,214.48/5,622.15
  6. Step 6: Final answer
    x = 4,270.82

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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.