Home / 7,782.23-10,739.55-4,245.41

Finding the Fourth Proportional to 7,782.23, 10,739.55 and 4,245.41

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Solution

The fourth proportional to 7,782.23, 10,739.55 and 4,245.41 is: 5,858.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,782.23 : 10,739.55 = 4,245.41 : x
  2. Step 2: Convert to fraction form
    7,782.23/10,739.55 = 4,245.41/x
  3. Step 3: Cross multiply
    7,782.23x = 10,739.55 × 4,245.41
  4. Step 4: Simplify right side
    7,782.23x = 45,593,792.97
  5. Step 5: Solve for x
    x = 45,593,792.97/7,782.23
  6. Step 6: Final answer
    x = 5,858.71

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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.