Home / 7,726.36-10,662.36-4,189.56

Finding the Fourth Proportional to 7,726.36, 10,662.36 and 4,189.56

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Solution

The fourth proportional to 7,726.36, 10,662.36 and 4,189.56 is: 5,781.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,726.36 : 10,662.36 = 4,189.56 : x
  2. Step 2: Convert to fraction form
    7,726.36/10,662.36 = 4,189.56/x
  3. Step 3: Cross multiply
    7,726.36x = 10,662.36 × 4,189.56
  4. Step 4: Simplify right side
    7,726.36x = 44,670,596.96
  5. Step 5: Solve for x
    x = 44,670,596.96/7,726.36
  6. Step 6: Final answer
    x = 5,781.59

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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.