Home / 4,215.21-5,819.73-3,772.35

Finding the Fourth Proportional to 4,215.21, 5,819.73 and 3,772.35

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Solution

The fourth proportional to 4,215.21, 5,819.73 and 3,772.35 is: 5,208.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,215.21 : 5,819.73 = 3,772.35 : x
  2. Step 2: Convert to fraction form
    4,215.21/5,819.73 = 3,772.35/x
  3. Step 3: Cross multiply
    4,215.21x = 5,819.73 × 3,772.35
  4. Step 4: Simplify right side
    4,215.21x = 21,954,010.51
  5. Step 5: Solve for x
    x = 21,954,010.51/4,215.21
  6. Step 6: Final answer
    x = 5,208.29

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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.