Home / 2,979.43-4,109.87-1,845.54

Finding the Fourth Proportional to 2,979.43, 4,109.87 and 1,845.54

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Solution

The fourth proportional to 2,979.43, 4,109.87 and 1,845.54 is: 2,545.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.43 : 4,109.87 = 1,845.54 : x
  2. Step 2: Convert to fraction form
    2,979.43/4,109.87 = 1,845.54/x
  3. Step 3: Cross multiply
    2,979.43x = 4,109.87 × 1,845.54
  4. Step 4: Simplify right side
    2,979.43x = 7,584,929.48
  5. Step 5: Solve for x
    x = 7,584,929.48/2,979.43
  6. Step 6: Final answer
    x = 2,545.77

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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.