Home / 7,782.15-10,739.34-4,245.33

Finding the Fourth Proportional to 7,782.15, 10,739.34 and 4,245.33

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Solution

The fourth proportional to 7,782.15, 10,739.34 and 4,245.33 is: 5,858.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,782.15 : 10,739.34 = 4,245.33 : x
  2. Step 2: Convert to fraction form
    7,782.15/10,739.34 = 4,245.33/x
  3. Step 3: Cross multiply
    7,782.15x = 10,739.34 × 4,245.33
  4. Step 4: Simplify right side
    7,782.15x = 45,592,042.28
  5. Step 5: Solve for x
    x = 45,592,042.28/7,782.15
  6. Step 6: Final answer
    x = 5,858.54

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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.