Home / 6,319.82-8,721.45-3,487.33

Finding the Fourth Proportional to 6,319.82, 8,721.45 and 3,487.33

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Solution

The fourth proportional to 6,319.82, 8,721.45 and 3,487.33 is: 4,812.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,319.82 : 8,721.45 = 3,487.33 : x
  2. Step 2: Convert to fraction form
    6,319.82/8,721.45 = 3,487.33/x
  3. Step 3: Cross multiply
    6,319.82x = 8,721.45 × 3,487.33
  4. Step 4: Simplify right side
    6,319.82x = 30,414,550.79
  5. Step 5: Solve for x
    x = 30,414,550.79/6,319.82
  6. Step 6: Final answer
    x = 4,812.56

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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.