Home / 4,487.40-6,724.08-3,186

Finding the Fourth Proportional to 4,487.40, 6,724.08 and 3,186

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Solution

The fourth proportional to 4,487.40, 6,724.08 and 3,186 is: 4,774.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,487.40 : 6,724.08 = 3,186 : x
  2. Step 2: Convert to fraction form
    4,487.40/6,724.08 = 3,186/x
  3. Step 3: Cross multiply
    4,487.40x = 6,724.08 × 3,186
  4. Step 4: Simplify right side
    4,487.40x = 21,422,918.88
  5. Step 5: Solve for x
    x = 21,422,918.88/4,487.40
  6. Step 6: Final answer
    x = 4,774.02

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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.