Home / 6,210.99-8,571.20-3,378.39

Finding the Fourth Proportional to 6,210.99, 8,571.20 and 3,378.39

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Solution

The fourth proportional to 6,210.99, 8,571.20 and 3,378.39 is: 4,662.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,210.99 : 8,571.20 = 3,378.39 : x
  2. Step 2: Convert to fraction form
    6,210.99/8,571.20 = 3,378.39/x
  3. Step 3: Cross multiply
    6,210.99x = 8,571.20 × 3,378.39
  4. Step 4: Simplify right side
    6,210.99x = 28,956,856.37
  5. Step 5: Solve for x
    x = 28,956,856.37/6,210.99
  6. Step 6: Final answer
    x = 4,662.20

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Half scale
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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.