Home / 3,828.87-5,283.72-2,150.46

Finding the Fourth Proportional to 3,828.87, 5,283.72 and 2,150.46

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Solution

The fourth proportional to 3,828.87, 5,283.72 and 2,150.46 is: 2,967.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828.87 : 5,283.72 = 2,150.46 : x
  2. Step 2: Convert to fraction form
    3,828.87/5,283.72 = 2,150.46/x
  3. Step 3: Cross multiply
    3,828.87x = 5,283.72 × 2,150.46
  4. Step 4: Simplify right side
    3,828.87x = 11,362,428.51
  5. Step 5: Solve for x
    x = 11,362,428.51/3,828.87
  6. Step 6: Final answer
    x = 2,967.57

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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.