Home / 5,187.26-7,161.36-3,973.64

Finding the Fourth Proportional to 5,187.26, 7,161.36 and 3,973.64

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Solution

The fourth proportional to 5,187.26, 7,161.36 and 3,973.64 is: 5,485.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.26 : 7,161.36 = 3,973.64 : x
  2. Step 2: Convert to fraction form
    5,187.26/7,161.36 = 3,973.64/x
  3. Step 3: Cross multiply
    5,187.26x = 7,161.36 × 3,973.64
  4. Step 4: Simplify right side
    5,187.26x = 28,456,666.55
  5. Step 5: Solve for x
    x = 28,456,666.55/5,187.26
  6. Step 6: Final answer
    x = 5,485.88

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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.