Home / 2,979.35-4,469.79-1,130.49

Finding the Fourth Proportional to 2,979.35, 4,469.79 and 1,130.49

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Solution

The fourth proportional to 2,979.35, 4,469.79 and 1,130.49 is: 1,696.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.35 : 4,469.79 = 1,130.49 : x
  2. Step 2: Convert to fraction form
    2,979.35/4,469.79 = 1,130.49/x
  3. Step 3: Cross multiply
    2,979.35x = 4,469.79 × 1,130.49
  4. Step 4: Simplify right side
    2,979.35x = 5,053,052.90
  5. Step 5: Solve for x
    x = 5,053,052.90/2,979.35
  6. Step 6: Final answer
    x = 1,696.03

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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.