Home / 7,219.80-10,829.30-2,025.68

Finding the Fourth Proportional to 7,219.80, 10,829.30 and 2,025.68

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Solution

The fourth proportional to 7,219.80, 10,829.30 and 2,025.68 is: 3,038.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,219.80 : 10,829.30 = 2,025.68 : x
  2. Step 2: Convert to fraction form
    7,219.80/10,829.30 = 2,025.68/x
  3. Step 3: Cross multiply
    7,219.80x = 10,829.30 × 2,025.68
  4. Step 4: Simplify right side
    7,219.80x = 21,936,632.15
  5. Step 5: Solve for x
    x = 21,936,632.15/7,219.80
  6. Step 6: Final answer
    x = 3,038.40

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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.