Home / 3,975.14-5,485.11-2,206.76

Finding the Fourth Proportional to 3,975.14, 5,485.11 and 2,206.76

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Solution

The fourth proportional to 3,975.14, 5,485.11 and 2,206.76 is: 3,045.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,975.14 : 5,485.11 = 2,206.76 : x
  2. Step 2: Convert to fraction form
    3,975.14/5,485.11 = 2,206.76/x
  3. Step 3: Cross multiply
    3,975.14x = 5,485.11 × 2,206.76
  4. Step 4: Simplify right side
    3,975.14x = 12,104,321.34
  5. Step 5: Solve for x
    x = 12,104,321.34/3,975.14
  6. Step 6: Final answer
    x = 3,045.01

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Double scale
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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.