Home / 3,020.81-4,168.68-1,694.51

Finding the Fourth Proportional to 3,020.81, 4,168.68 and 1,694.51

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Solution

The fourth proportional to 3,020.81, 4,168.68 and 1,694.51 is: 2,338.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,020.81 : 4,168.68 = 1,694.51 : x
  2. Step 2: Convert to fraction form
    3,020.81/4,168.68 = 1,694.51/x
  3. Step 3: Cross multiply
    3,020.81x = 4,168.68 × 1,694.51
  4. Step 4: Simplify right side
    3,020.81x = 7,063,869.95
  5. Step 5: Solve for x
    x = 7,063,869.95/3,020.81
  6. Step 6: Final answer
    x = 2,338.40

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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.