Home / 3,975.23-5,485.88-2,206.95

Finding the Fourth Proportional to 3,975.23, 5,485.88 and 2,206.95

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Solution

The fourth proportional to 3,975.23, 5,485.88 and 2,206.95 is: 3,045.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,975.23 : 5,485.88 = 2,206.95 : x
  2. Step 2: Convert to fraction form
    3,975.23/5,485.88 = 2,206.95/x
  3. Step 3: Cross multiply
    3,975.23x = 5,485.88 × 2,206.95
  4. Step 4: Simplify right side
    3,975.23x = 12,107,051.83
  5. Step 5: Solve for x
    x = 12,107,051.83/3,975.23
  6. Step 6: Final answer
    x = 3,045.63

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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.