Home / 3,824.57-5,277.81-2,145.84

Finding the Fourth Proportional to 3,824.57, 5,277.81 and 2,145.84

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Solution

The fourth proportional to 3,824.57, 5,277.81 and 2,145.84 is: 2,961.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,824.57 : 5,277.81 = 2,145.84 : x
  2. Step 2: Convert to fraction form
    3,824.57/5,277.81 = 2,145.84/x
  3. Step 3: Cross multiply
    3,824.57x = 5,277.81 × 2,145.84
  4. Step 4: Simplify right side
    3,824.57x = 11,325,335.81
  5. Step 5: Solve for x
    x = 11,325,335.81/3,824.57
  6. Step 6: Final answer
    x = 2,961.21

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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.