Home / 3,220.76-4,453.98-3,162.44

Finding the Fourth Proportional to 3,220.76, 4,453.98 and 3,162.44

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Solution

The fourth proportional to 3,220.76, 4,453.98 and 3,162.44 is: 4,373.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.76 : 4,453.98 = 3,162.44 : x
  2. Step 2: Convert to fraction form
    3,220.76/4,453.98 = 3,162.44/x
  3. Step 3: Cross multiply
    3,220.76x = 4,453.98 × 3,162.44
  4. Step 4: Simplify right side
    3,220.76x = 14,085,444.51
  5. Step 5: Solve for x
    x = 14,085,444.51/3,220.76
  6. Step 6: Final answer
    x = 4,373.33

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Half scale
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Double 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.