Home / 6,211.31-8,571.52-3,378.62

Finding the Fourth Proportional to 6,211.31, 8,571.52 and 3,378.62

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Solution

The fourth proportional to 6,211.31, 8,571.52 and 3,378.62 is: 4,662.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,211.31 : 8,571.52 = 3,378.62 : x
  2. Step 2: Convert to fraction form
    6,211.31/8,571.52 = 3,378.62/x
  3. Step 3: Cross multiply
    6,211.31x = 8,571.52 × 3,378.62
  4. Step 4: Simplify right side
    6,211.31x = 28,959,892.01
  5. Step 5: Solve for x
    x = 28,959,892.01/6,211.31
  6. Step 6: Final answer
    x = 4,662.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.