Home / 3,208.39-4,427.69-1,772.76

Finding the Fourth Proportional to 3,208.39, 4,427.69 and 1,772.76

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Solution

The fourth proportional to 3,208.39, 4,427.69 and 1,772.76 is: 2,446.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208.39 : 4,427.69 = 1,772.76 : x
  2. Step 2: Convert to fraction form
    3,208.39/4,427.69 = 1,772.76/x
  3. Step 3: Cross multiply
    3,208.39x = 4,427.69 × 1,772.76
  4. Step 4: Simplify right side
    3,208.39x = 7,849,231.72
  5. Step 5: Solve for x
    x = 7,849,231.72/3,208.39
  6. Step 6: Final answer
    x = 2,446.47

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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.