Home / 5,622.70-8,420.55-3,019.90

Finding the Fourth Proportional to 5,622.70, 8,420.55 and 3,019.90

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Solution

The fourth proportional to 5,622.70, 8,420.55 and 3,019.90 is: 4,522.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,622.70 : 8,420.55 = 3,019.90 : x
  2. Step 2: Convert to fraction form
    5,622.70/8,420.55 = 3,019.90/x
  3. Step 3: Cross multiply
    5,622.70x = 8,420.55 × 3,019.90
  4. Step 4: Simplify right side
    5,622.70x = 25,429,218.95
  5. Step 5: Solve for x
    x = 25,429,218.95/5,622.70
  6. Step 6: Final answer
    x = 4,522.60

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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.