Home / 4,916.61-6,783.78-2,791.62

Finding the Fourth Proportional to 4,916.61, 6,783.78 and 2,791.62

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Solution

The fourth proportional to 4,916.61, 6,783.78 and 2,791.62 is: 3,851.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,916.61 : 6,783.78 = 2,791.62 : x
  2. Step 2: Convert to fraction form
    4,916.61/6,783.78 = 2,791.62/x
  3. Step 3: Cross multiply
    4,916.61x = 6,783.78 × 2,791.62
  4. Step 4: Simplify right side
    4,916.61x = 18,937,735.92
  5. Step 5: Solve for x
    x = 18,937,735.92/4,916.61
  6. Step 6: Final answer
    x = 3,851.79

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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.