Home / 3,821.40-5,721.17-2,350.65

Finding the Fourth Proportional to 3,821.40, 5,721.17 and 2,350.65

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Solution

The fourth proportional to 3,821.40, 5,721.17 and 2,350.65 is: 3,519.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.40 : 5,721.17 = 2,350.65 : x
  2. Step 2: Convert to fraction form
    3,821.40/5,721.17 = 2,350.65/x
  3. Step 3: Cross multiply
    3,821.40x = 5,721.17 × 2,350.65
  4. Step 4: Simplify right side
    3,821.40x = 13,448,456.51
  5. Step 5: Solve for x
    x = 13,448,456.51/3,821.40
  6. Step 6: Final answer
    x = 3,519.25

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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.