Home / 7,839.32-11,755.92-2,840.51

Finding the Fourth Proportional to 7,839.32, 11,755.92 and 2,840.51

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Solution

The fourth proportional to 7,839.32, 11,755.92 and 2,840.51 is: 4,259.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,839.32 : 11,755.92 = 2,840.51 : x
  2. Step 2: Convert to fraction form
    7,839.32/11,755.92 = 2,840.51/x
  3. Step 3: Cross multiply
    7,839.32x = 11,755.92 × 2,840.51
  4. Step 4: Simplify right side
    7,839.32x = 33,392,760.93
  5. Step 5: Solve for x
    x = 33,392,760.93/7,839.32
  6. Step 6: Final answer
    x = 4,259.65

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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.