Home / 3,220.34-4,442.78-1,891.94

Finding the Fourth Proportional to 3,220.34, 4,442.78 and 1,891.94

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Solution

The fourth proportional to 3,220.34, 4,442.78 and 1,891.94 is: 2,610.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.34 : 4,442.78 = 1,891.94 : x
  2. Step 2: Convert to fraction form
    3,220.34/4,442.78 = 1,891.94/x
  3. Step 3: Cross multiply
    3,220.34x = 4,442.78 × 1,891.94
  4. Step 4: Simplify right side
    3,220.34x = 8,405,455.71
  5. Step 5: Solve for x
    x = 8,405,455.71/3,220.34
  6. Step 6: Final answer
    x = 2,610.12

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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.