Home / 3,780.47-5,216.67-2,186.73

Finding the Fourth Proportional to 3,780.47, 5,216.67 and 2,186.73

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Solution

The fourth proportional to 3,780.47, 5,216.67 and 2,186.73 is: 3,017.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.47 : 5,216.67 = 2,186.73 : x
  2. Step 2: Convert to fraction form
    3,780.47/5,216.67 = 2,186.73/x
  3. Step 3: Cross multiply
    3,780.47x = 5,216.67 × 2,186.73
  4. Step 4: Simplify right side
    3,780.47x = 11,407,448.79
  5. Step 5: Solve for x
    x = 11,407,448.79/3,780.47
  6. Step 6: Final answer
    x = 3,017.47

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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.