Home / 3,310.31-4,965.47-1,119.05

Finding the Fourth Proportional to 3,310.31, 4,965.47 and 1,119.05

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Solution

The fourth proportional to 3,310.31, 4,965.47 and 1,119.05 is: 1,678.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,310.31 : 4,965.47 = 1,119.05 : x
  2. Step 2: Convert to fraction form
    3,310.31/4,965.47 = 1,119.05/x
  3. Step 3: Cross multiply
    3,310.31x = 4,965.47 × 1,119.05
  4. Step 4: Simplify right side
    3,310.31x = 5,556,578.78
  5. Step 5: Solve for x
    x = 5,556,578.78/3,310.31
  6. Step 6: Final answer
    x = 1,678.57

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Double scale
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Similar ratio
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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.