Home / 4,188.36-6,277.38-1,721.64

Finding the Fourth Proportional to 4,188.36, 6,277.38 and 1,721.64

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Solution

The fourth proportional to 4,188.36, 6,277.38 and 1,721.64 is: 2,580.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,188.36 : 6,277.38 = 1,721.64 : x
  2. Step 2: Convert to fraction form
    4,188.36/6,277.38 = 1,721.64/x
  3. Step 3: Cross multiply
    4,188.36x = 6,277.38 × 1,721.64
  4. Step 4: Simplify right side
    4,188.36x = 10,807,388.50
  5. Step 5: Solve for x
    x = 10,807,388.50/4,188.36
  6. Step 6: Final answer
    x = 2,580.34

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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.