Home / 3,535.92-4,879.44-2,489.40

Finding the Fourth Proportional to 3,535.92, 4,879.44 and 2,489.40

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Solution

The fourth proportional to 3,535.92, 4,879.44 and 2,489.40 is: 3,435.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,535.92 : 4,879.44 = 2,489.40 : x
  2. Step 2: Convert to fraction form
    3,535.92/4,879.44 = 2,489.40/x
  3. Step 3: Cross multiply
    3,535.92x = 4,879.44 × 2,489.40
  4. Step 4: Simplify right side
    3,535.92x = 12,146,877.94
  5. Step 5: Solve for x
    x = 12,146,877.94/3,535.92
  6. Step 6: Final answer
    x = 3,435.28

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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.