Home / 5,241.81-7,863.53-1,778.25

Finding the Fourth Proportional to 5,241.81, 7,863.53 and 1,778.25

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Solution

The fourth proportional to 5,241.81, 7,863.53 and 1,778.25 is: 2,667.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,241.81 : 7,863.53 = 1,778.25 : x
  2. Step 2: Convert to fraction form
    5,241.81/7,863.53 = 1,778.25/x
  3. Step 3: Cross multiply
    5,241.81x = 7,863.53 × 1,778.25
  4. Step 4: Simplify right side
    5,241.81x = 13,983,313.33
  5. Step 5: Solve for x
    x = 13,983,313.33/5,241.81
  6. Step 6: Final answer
    x = 2,667.65

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1.5x scale

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.