Home / 7,768.45-10,720.50-4,783.54

Finding the Fourth Proportional to 7,768.45, 10,720.50 and 4,783.54

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Solution

The fourth proportional to 7,768.45, 10,720.50 and 4,783.54 is: 6,601.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,768.45 : 10,720.50 = 4,783.54 : x
  2. Step 2: Convert to fraction form
    7,768.45/10,720.50 = 4,783.54/x
  3. Step 3: Cross multiply
    7,768.45x = 10,720.50 × 4,783.54
  4. Step 4: Simplify right side
    7,768.45x = 51,281,940.57
  5. Step 5: Solve for x
    x = 51,281,940.57/7,768.45
  6. Step 6: Final answer
    x = 6,601.31

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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.