Home / 3,828.81-5,283.75-2,236.56

Finding the Fourth Proportional to 3,828.81, 5,283.75 and 2,236.56

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Solution

The fourth proportional to 3,828.81, 5,283.75 and 2,236.56 is: 3,086.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828.81 : 5,283.75 = 2,236.56 : x
  2. Step 2: Convert to fraction form
    3,828.81/5,283.75 = 2,236.56/x
  3. Step 3: Cross multiply
    3,828.81x = 5,283.75 × 2,236.56
  4. Step 4: Simplify right side
    3,828.81x = 11,817,423.90
  5. Step 5: Solve for x
    x = 11,817,423.90/3,828.81
  6. Step 6: Final answer
    x = 3,086.45

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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.