Home / 5,241.96-7,856.46-2,645.64

Finding the Fourth Proportional to 5,241.96, 7,856.46 and 2,645.64

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Solution

The fourth proportional to 5,241.96, 7,856.46 and 2,645.64 is: 3,965.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,241.96 : 7,856.46 = 2,645.64 : x
  2. Step 2: Convert to fraction form
    5,241.96/7,856.46 = 2,645.64/x
  3. Step 3: Cross multiply
    5,241.96x = 7,856.46 × 2,645.64
  4. Step 4: Simplify right side
    5,241.96x = 20,785,364.83
  5. Step 5: Solve for x
    x = 20,785,364.83/5,241.96
  6. Step 6: Final answer
    x = 3,965.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.