Home / 3,740.47-5,161.39-2,147.03

Finding the Fourth Proportional to 3,740.47, 5,161.39 and 2,147.03

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Solution

The fourth proportional to 3,740.47, 5,161.39 and 2,147.03 is: 2,962.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,740.47 : 5,161.39 = 2,147.03 : x
  2. Step 2: Convert to fraction form
    3,740.47/5,161.39 = 2,147.03/x
  3. Step 3: Cross multiply
    3,740.47x = 5,161.39 × 2,147.03
  4. Step 4: Simplify right side
    3,740.47x = 11,081,659.17
  5. Step 5: Solve for x
    x = 11,081,659.17/3,740.47
  6. Step 6: Final answer
    x = 2,962.64

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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.