Home / 3,074.91-4,243.38-1,677.69

Finding the Fourth Proportional to 3,074.91, 4,243.38 and 1,677.69

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Solution

The fourth proportional to 3,074.91, 4,243.38 and 1,677.69 is: 2,315.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,074.91 : 4,243.38 = 1,677.69 : x
  2. Step 2: Convert to fraction form
    3,074.91/4,243.38 = 1,677.69/x
  3. Step 3: Cross multiply
    3,074.91x = 4,243.38 × 1,677.69
  4. Step 4: Simplify right side
    3,074.91x = 7,119,076.19
  5. Step 5: Solve for x
    x = 7,119,076.19/3,074.91
  6. Step 6: Final answer
    x = 2,315.21

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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.