Home / 3,657.44-5,046.80-2,085.12

Finding the Fourth Proportional to 3,657.44, 5,046.80 and 2,085.12

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Solution

The fourth proportional to 3,657.44, 5,046.80 and 2,085.12 is: 2,877.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,657.44 : 5,046.80 = 2,085.12 : x
  2. Step 2: Convert to fraction form
    3,657.44/5,046.80 = 2,085.12/x
  3. Step 3: Cross multiply
    3,657.44x = 5,046.80 × 2,085.12
  4. Step 4: Simplify right side
    3,657.44x = 10,523,183.62
  5. Step 5: Solve for x
    x = 10,523,183.62/3,657.44
  6. Step 6: Final answer
    x = 2,877.20

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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.