Home / 4,188.45-6,277.80-1,720.27

Finding the Fourth Proportional to 4,188.45, 6,277.80 and 1,720.27

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Solution

The fourth proportional to 4,188.45, 6,277.80 and 1,720.27 is: 2,578.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,188.45 : 6,277.80 = 1,720.27 : x
  2. Step 2: Convert to fraction form
    4,188.45/6,277.80 = 1,720.27/x
  3. Step 3: Cross multiply
    4,188.45x = 6,277.80 × 1,720.27
  4. Step 4: Simplify right side
    4,188.45x = 10,799,511.01
  5. Step 5: Solve for x
    x = 10,799,511.01/4,188.45
  6. Step 6: Final answer
    x = 2,578.40

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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.