Home / 4,859.78-6,708.67-3,780.61

Finding the Fourth Proportional to 4,859.78, 6,708.67 and 3,780.61

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Solution

The fourth proportional to 4,859.78, 6,708.67 and 3,780.61 is: 5,218.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,859.78 : 6,708.67 = 3,780.61 : x
  2. Step 2: Convert to fraction form
    4,859.78/6,708.67 = 3,780.61/x
  3. Step 3: Cross multiply
    4,859.78x = 6,708.67 × 3,780.61
  4. Step 4: Simplify right side
    4,859.78x = 25,362,838.67
  5. Step 5: Solve for x
    x = 25,362,838.67/4,859.78
  6. Step 6: Final answer
    x = 5,218.93

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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.