Home / 4,886-6,742.68-2,790.18

Finding the Fourth Proportional to 4,886, 6,742.68 and 2,790.18

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Solution

The fourth proportional to 4,886, 6,742.68 and 2,790.18 is: 3,850.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,886 : 6,742.68 = 2,790.18 : x
  2. Step 2: Convert to fraction form
    4,886/6,742.68 = 2,790.18/x
  3. Step 3: Cross multiply
    4,886x = 6,742.68 × 2,790.18
  4. Step 4: Simplify right side
    4,886x = 18,813,290.88
  5. Step 5: Solve for x
    x = 18,813,290.88/4,886
  6. Step 6: Final answer
    x = 3,850.45

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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.