Home / 3,657.42-5,047.20-2,085.54

Finding the Fourth Proportional to 3,657.42, 5,047.20 and 2,085.54

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Solution

The fourth proportional to 3,657.42, 5,047.20 and 2,085.54 is: 2,878.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,657.42 : 5,047.20 = 2,085.54 : x
  2. Step 2: Convert to fraction form
    3,657.42/5,047.20 = 2,085.54/x
  3. Step 3: Cross multiply
    3,657.42x = 5,047.20 × 2,085.54
  4. Step 4: Simplify right side
    3,657.42x = 10,526,137.49
  5. Step 5: Solve for x
    x = 10,526,137.49/3,657.42
  6. Step 6: Final answer
    x = 2,878.02

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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.