Home / 7,726.49-11,589.74-3,106.25

Finding the Fourth Proportional to 7,726.49, 11,589.74 and 3,106.25

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Solution

The fourth proportional to 7,726.49, 11,589.74 and 3,106.25 is: 4,659.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,726.49 : 11,589.74 = 3,106.25 : x
  2. Step 2: Convert to fraction form
    7,726.49/11,589.74 = 3,106.25/x
  3. Step 3: Cross multiply
    7,726.49x = 11,589.74 × 3,106.25
  4. Step 4: Simplify right side
    7,726.49x = 36,000,629.88
  5. Step 5: Solve for x
    x = 36,000,629.88/7,726.49
  6. Step 6: Final answer
    x = 4,659.38

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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.