Home / 4,914.71-6,782.39-2,790.19

Finding the Fourth Proportional to 4,914.71, 6,782.39 and 2,790.19

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Solution

The fourth proportional to 4,914.71, 6,782.39 and 2,790.19 is: 3,850.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,914.71 : 6,782.39 = 2,790.19 : x
  2. Step 2: Convert to fraction form
    4,914.71/6,782.39 = 2,790.19/x
  3. Step 3: Cross multiply
    4,914.71x = 6,782.39 × 2,790.19
  4. Step 4: Simplify right side
    4,914.71x = 18,924,108.89
  5. Step 5: Solve for x
    x = 18,924,108.89/4,914.71
  6. Step 6: Final answer
    x = 3,850.50

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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.