Home / 4,820.78-7,230.90-2,222.30

Finding the Fourth Proportional to 4,820.78, 7,230.90 and 2,222.30

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Solution

The fourth proportional to 4,820.78, 7,230.90 and 2,222.30 is: 3,333.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,820.78 : 7,230.90 = 2,222.30 : x
  2. Step 2: Convert to fraction form
    4,820.78/7,230.90 = 2,222.30/x
  3. Step 3: Cross multiply
    4,820.78x = 7,230.90 × 2,222.30
  4. Step 4: Simplify right side
    4,820.78x = 16,069,229.07
  5. Step 5: Solve for x
    x = 16,069,229.07/4,820.78
  6. Step 6: Final answer
    x = 3,333.33

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1.5x scale

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.