Home / 7,220.78-10,835.49-4,144.94

Finding the Fourth Proportional to 7,220.78, 10,835.49 and 4,144.94

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Solution

The fourth proportional to 7,220.78, 10,835.49 and 4,144.94 is: 6,219.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.78 : 10,835.49 = 4,144.94 : x
  2. Step 2: Convert to fraction form
    7,220.78/10,835.49 = 4,144.94/x
  3. Step 3: Cross multiply
    7,220.78x = 10,835.49 × 4,144.94
  4. Step 4: Simplify right side
    7,220.78x = 44,912,455.92
  5. Step 5: Solve for x
    x = 44,912,455.92/7,220.78
  6. Step 6: Final answer
    x = 6,219.89

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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.