Home / 3,974.98-5,485.64-2,206.59

Finding the Fourth Proportional to 3,974.98, 5,485.64 and 2,206.59

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Solution

The fourth proportional to 3,974.98, 5,485.64 and 2,206.59 is: 3,045.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,974.98 : 5,485.64 = 2,206.59 : x
  2. Step 2: Convert to fraction form
    3,974.98/5,485.64 = 2,206.59/x
  3. Step 3: Cross multiply
    3,974.98x = 5,485.64 × 2,206.59
  4. Step 4: Simplify right side
    3,974.98x = 12,104,563.88
  5. Step 5: Solve for x
    x = 12,104,563.88/3,974.98
  6. Step 6: Final answer
    x = 3,045.19

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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.