Home / 3,821.04-5,726.44-3,145.20

Finding the Fourth Proportional to 3,821.04, 5,726.44 and 3,145.20

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Solution

The fourth proportional to 3,821.04, 5,726.44 and 3,145.20 is: 4,713.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.04 : 5,726.44 = 3,145.20 : x
  2. Step 2: Convert to fraction form
    3,821.04/5,726.44 = 3,145.20/x
  3. Step 3: Cross multiply
    3,821.04x = 5,726.44 × 3,145.20
  4. Step 4: Simplify right side
    3,821.04x = 18,010,799.09
  5. Step 5: Solve for x
    x = 18,010,799.09/3,821.04
  6. Step 6: Final answer
    x = 4,713.59

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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.