Home / 3,906.80-5,860.88-2,521.47

Finding the Fourth Proportional to 3,906.80, 5,860.88 and 2,521.47

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Solution

The fourth proportional to 3,906.80, 5,860.88 and 2,521.47 is: 3,782.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,906.80 : 5,860.88 = 2,521.47 : x
  2. Step 2: Convert to fraction form
    3,906.80/5,860.88 = 2,521.47/x
  3. Step 3: Cross multiply
    3,906.80x = 5,860.88 × 2,521.47
  4. Step 4: Simplify right side
    3,906.80x = 14,778,054.05
  5. Step 5: Solve for x
    x = 14,778,054.05/3,906.80
  6. Step 6: Final answer
    x = 3,782.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.