Home / 7,738.89-10,679.91-4,381.64

Finding the Fourth Proportional to 7,738.89, 10,679.91 and 4,381.64

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Solution

The fourth proportional to 7,738.89, 10,679.91 and 4,381.64 is: 6,046.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,738.89 : 10,679.91 = 4,381.64 : x
  2. Step 2: Convert to fraction form
    7,738.89/10,679.91 = 4,381.64/x
  3. Step 3: Cross multiply
    7,738.89x = 10,679.91 × 4,381.64
  4. Step 4: Simplify right side
    7,738.89x = 46,795,498.94
  5. Step 5: Solve for x
    x = 46,795,498.94/7,738.89
  6. Step 6: Final answer
    x = 6,046.80

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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.