Home / 3,007.13-4,149.82-1,680.89

Finding the Fourth Proportional to 3,007.13, 4,149.82 and 1,680.89

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Solution

The fourth proportional to 3,007.13, 4,149.82 and 1,680.89 is: 2,319.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,007.13 : 4,149.82 = 1,680.89 : x
  2. Step 2: Convert to fraction form
    3,007.13/4,149.82 = 1,680.89/x
  3. Step 3: Cross multiply
    3,007.13x = 4,149.82 × 1,680.89
  4. Step 4: Simplify right side
    3,007.13x = 6,975,382.54
  5. Step 5: Solve for x
    x = 6,975,382.54/3,007.13
  6. Step 6: Final answer
    x = 2,319.61

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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.