Home / 3,823.71-5,276.97-2,145.03

Finding the Fourth Proportional to 3,823.71, 5,276.97 and 2,145.03

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Solution

The fourth proportional to 3,823.71, 5,276.97 and 2,145.03 is: 2,960.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,823.71 : 5,276.97 = 2,145.03 : x
  2. Step 2: Convert to fraction form
    3,823.71/5,276.97 = 2,145.03/x
  3. Step 3: Cross multiply
    3,823.71x = 5,276.97 × 2,145.03
  4. Step 4: Simplify right side
    3,823.71x = 11,319,258.96
  5. Step 5: Solve for x
    x = 11,319,258.96/3,823.71
  6. Step 6: Final answer
    x = 2,960.28

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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.