Home / 3,967.86-5,475.47-2,175.33

Finding the Fourth Proportional to 3,967.86, 5,475.47 and 2,175.33

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Solution

The fourth proportional to 3,967.86, 5,475.47 and 2,175.33 is: 3,001.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,967.86 : 5,475.47 = 2,175.33 : x
  2. Step 2: Convert to fraction form
    3,967.86/5,475.47 = 2,175.33/x
  3. Step 3: Cross multiply
    3,967.86x = 5,475.47 × 2,175.33
  4. Step 4: Simplify right side
    3,967.86x = 11,910,943.28
  5. Step 5: Solve for x
    x = 11,910,943.28/3,967.86
  6. Step 6: Final answer
    x = 3,001.86

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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.