Home / 3,220.54-4,443.28-2,225.45

Finding the Fourth Proportional to 3,220.54, 4,443.28 and 2,225.45

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Solution

The fourth proportional to 3,220.54, 4,443.28 and 2,225.45 is: 3,070.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.54 : 4,443.28 = 2,225.45 : x
  2. Step 2: Convert to fraction form
    3,220.54/4,443.28 = 2,225.45/x
  3. Step 3: Cross multiply
    3,220.54x = 4,443.28 × 2,225.45
  4. Step 4: Simplify right side
    3,220.54x = 9,888,297.48
  5. Step 5: Solve for x
    x = 9,888,297.48/3,220.54
  6. Step 6: Final answer
    x = 3,070.38

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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.