Home / 3,819.13-5,270.72-2,140.51

Finding the Fourth Proportional to 3,819.13, 5,270.72 and 2,140.51

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Solution

The fourth proportional to 3,819.13, 5,270.72 and 2,140.51 is: 2,954.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,819.13 : 5,270.72 = 2,140.51 : x
  2. Step 2: Convert to fraction form
    3,819.13/5,270.72 = 2,140.51/x
  3. Step 3: Cross multiply
    3,819.13x = 5,270.72 × 2,140.51
  4. Step 4: Simplify right side
    3,819.13x = 11,282,028.87
  5. Step 5: Solve for x
    x = 11,282,028.87/3,819.13
  6. Step 6: Final answer
    x = 2,954.08

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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.