Home / 3,975.39-5,485.46-2,207.01

Finding the Fourth Proportional to 3,975.39, 5,485.46 and 2,207.01

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Solution

The fourth proportional to 3,975.39, 5,485.46 and 2,207.01 is: 3,045.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,975.39 : 5,485.46 = 2,207.01 : x
  2. Step 2: Convert to fraction form
    3,975.39/5,485.46 = 2,207.01/x
  3. Step 3: Cross multiply
    3,975.39x = 5,485.46 × 2,207.01
  4. Step 4: Simplify right side
    3,975.39x = 12,106,454.04
  5. Step 5: Solve for x
    x = 12,106,454.04/3,975.39
  6. Step 6: Final answer
    x = 3,045.35

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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.