Home / 3,853.98-5,318.49-2,085.59

Finding the Fourth Proportional to 3,853.98, 5,318.49 and 2,085.59

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Solution

The fourth proportional to 3,853.98, 5,318.49 and 2,085.59 is: 2,878.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,853.98 : 5,318.49 = 2,085.59 : x
  2. Step 2: Convert to fraction form
    3,853.98/5,318.49 = 2,085.59/x
  3. Step 3: Cross multiply
    3,853.98x = 5,318.49 × 2,085.59
  4. Step 4: Simplify right side
    3,853.98x = 11,092,162.97
  5. Step 5: Solve for x
    x = 11,092,162.97/3,853.98
  6. Step 6: Final answer
    x = 2,878.11

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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.