Home / 3,945.26-5,442.81-2,619.68

Finding the Fourth Proportional to 3,945.26, 5,442.81 and 2,619.68

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Solution

The fourth proportional to 3,945.26, 5,442.81 and 2,619.68 is: 3,614.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.26 : 5,442.81 = 2,619.68 : x
  2. Step 2: Convert to fraction form
    3,945.26/5,442.81 = 2,619.68/x
  3. Step 3: Cross multiply
    3,945.26x = 5,442.81 × 2,619.68
  4. Step 4: Simplify right side
    3,945.26x = 14,258,420.50
  5. Step 5: Solve for x
    x = 14,258,420.50/3,945.26
  6. Step 6: Final answer
    x = 3,614.06

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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.