Home / 3,976.26-5,486.13-2,485.70

Finding the Fourth Proportional to 3,976.26, 5,486.13 and 2,485.70

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Solution

The fourth proportional to 3,976.26, 5,486.13 and 2,485.70 is: 3,429.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976.26 : 5,486.13 = 2,485.70 : x
  2. Step 2: Convert to fraction form
    3,976.26/5,486.13 = 2,485.70/x
  3. Step 3: Cross multiply
    3,976.26x = 5,486.13 × 2,485.70
  4. Step 4: Simplify right side
    3,976.26x = 13,636,845.91
  5. Step 5: Solve for x
    x = 13,636,845.91/3,976.26
  6. Step 6: Final answer
    x = 3,429.57

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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.