Home / 3,310.39-4,965.59-1,118.80

Finding the Fourth Proportional to 3,310.39, 4,965.59 and 1,118.80

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Solution

The fourth proportional to 3,310.39, 4,965.59 and 1,118.80 is: 1,678.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,310.39 : 4,965.59 = 1,118.80 : x
  2. Step 2: Convert to fraction form
    3,310.39/4,965.59 = 1,118.80/x
  3. Step 3: Cross multiply
    3,310.39x = 4,965.59 × 1,118.80
  4. Step 4: Simplify right side
    3,310.39x = 5,555,502.09
  5. Step 5: Solve for x
    x = 5,555,502.09/3,310.39
  6. Step 6: Final answer
    x = 1,678.20

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.