Home / 3,776.80-5,211.72-2,098.12

Finding the Fourth Proportional to 3,776.80, 5,211.72 and 2,098.12

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Solution

The fourth proportional to 3,776.80, 5,211.72 and 2,098.12 is: 2,895.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,776.80 : 5,211.72 = 2,098.12 : x
  2. Step 2: Convert to fraction form
    3,776.80/5,211.72 = 2,098.12/x
  3. Step 3: Cross multiply
    3,776.80x = 5,211.72 × 2,098.12
  4. Step 4: Simplify right side
    3,776.80x = 10,934,813.97
  5. Step 5: Solve for x
    x = 10,934,813.97/3,776.80
  6. Step 6: Final answer
    x = 2,895.26

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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.