Home / 7,028.20-9,699.78-4,511.80

Finding the Fourth Proportional to 7,028.20, 9,699.78 and 4,511.80

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Solution

The fourth proportional to 7,028.20, 9,699.78 and 4,511.80 is: 6,226.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,028.20 : 9,699.78 = 4,511.80 : x
  2. Step 2: Convert to fraction form
    7,028.20/9,699.78 = 4,511.80/x
  3. Step 3: Cross multiply
    7,028.20x = 9,699.78 × 4,511.80
  4. Step 4: Simplify right side
    7,028.20x = 43,763,467.40
  5. Step 5: Solve for x
    x = 43,763,467.40/7,028.20
  6. Step 6: Final answer
    x = 6,226.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.