Home / 4,969.85-6,858.52-2,731.78

Finding the Fourth Proportional to 4,969.85, 6,858.52 and 2,731.78

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Solution

The fourth proportional to 4,969.85, 6,858.52 and 2,731.78 is: 3,769.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,969.85 : 6,858.52 = 2,731.78 : x
  2. Step 2: Convert to fraction form
    4,969.85/6,858.52 = 2,731.78/x
  3. Step 3: Cross multiply
    4,969.85x = 6,858.52 × 2,731.78
  4. Step 4: Simplify right side
    4,969.85x = 18,735,969.51
  5. Step 5: Solve for x
    x = 18,735,969.51/4,969.85
  6. Step 6: Final answer
    x = 3,769.93

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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.