Home / 3,856.25-5,321.63-2,459.81

Finding the Fourth Proportional to 3,856.25, 5,321.63 and 2,459.81

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Solution

The fourth proportional to 3,856.25, 5,321.63 and 2,459.81 is: 3,394.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,856.25 : 5,321.63 = 2,459.81 : x
  2. Step 2: Convert to fraction form
    3,856.25/5,321.63 = 2,459.81/x
  3. Step 3: Cross multiply
    3,856.25x = 5,321.63 × 2,459.81
  4. Step 4: Simplify right side
    3,856.25x = 13,090,198.69
  5. Step 5: Solve for x
    x = 13,090,198.69/3,856.25
  6. Step 6: Final answer
    x = 3,394.54

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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.