Home / 4,116.75-5,679.09-2,790.87

Finding the Fourth Proportional to 4,116.75, 5,679.09 and 2,790.87

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Solution

The fourth proportional to 4,116.75, 5,679.09 and 2,790.87 is: 3,850.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,116.75 : 5,679.09 = 2,790.87 : x
  2. Step 2: Convert to fraction form
    4,116.75/5,679.09 = 2,790.87/x
  3. Step 3: Cross multiply
    4,116.75x = 5,679.09 × 2,790.87
  4. Step 4: Simplify right side
    4,116.75x = 15,849,601.91
  5. Step 5: Solve for x
    x = 15,849,601.91/4,116.75
  6. Step 6: Final answer
    x = 3,850.03

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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.