Home / 3,889.16-5,365.86-3,514.94

Finding the Fourth Proportional to 3,889.16, 5,365.86 and 3,514.94

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Solution

The fourth proportional to 3,889.16, 5,365.86 and 3,514.94 is: 4,849.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,889.16 : 5,365.86 = 3,514.94 : x
  2. Step 2: Convert to fraction form
    3,889.16/5,365.86 = 3,514.94/x
  3. Step 3: Cross multiply
    3,889.16x = 5,365.86 × 3,514.94
  4. Step 4: Simplify right side
    3,889.16x = 18,860,675.95
  5. Step 5: Solve for x
    x = 18,860,675.95/3,889.16
  6. Step 6: Final answer
    x = 4,849.55

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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.