Home / 4,188.46-6,280.30-1,721.25

Finding the Fourth Proportional to 4,188.46, 6,280.30 and 1,721.25

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Solution

The fourth proportional to 4,188.46, 6,280.30 and 1,721.25 is: 2,580.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,188.46 : 6,280.30 = 1,721.25 : x
  2. Step 2: Convert to fraction form
    4,188.46/6,280.30 = 1,721.25/x
  3. Step 3: Cross multiply
    4,188.46x = 6,280.30 × 1,721.25
  4. Step 4: Simplify right side
    4,188.46x = 10,809,961.27
  5. Step 5: Solve for x
    x = 10,809,961.27/4,188.46
  6. Step 6: Final answer
    x = 2,580.89

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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.