Home / 3,975.02-5,485.74-2,206.66

Finding the Fourth Proportional to 3,975.02, 5,485.74 and 2,206.66

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Solution

The fourth proportional to 3,975.02, 5,485.74 and 2,206.66 is: 3,045.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,975.02 : 5,485.74 = 2,206.66 : x
  2. Step 2: Convert to fraction form
    3,975.02/5,485.74 = 2,206.66/x
  3. Step 3: Cross multiply
    3,975.02x = 5,485.74 × 2,206.66
  4. Step 4: Simplify right side
    3,975.02x = 12,105,163.74
  5. Step 5: Solve for x
    x = 12,105,163.74/3,975.02
  6. Step 6: Final answer
    x = 3,045.31

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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.