Home / 3,798.02-5,243.64-2,912.12

Finding the Fourth Proportional to 3,798.02, 5,243.64 and 2,912.12

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Solution

The fourth proportional to 3,798.02, 5,243.64 and 2,912.12 is: 4,020.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,798.02 : 5,243.64 = 2,912.12 : x
  2. Step 2: Convert to fraction form
    3,798.02/5,243.64 = 2,912.12/x
  3. Step 3: Cross multiply
    3,798.02x = 5,243.64 × 2,912.12
  4. Step 4: Simplify right side
    3,798.02x = 15,270,108.92
  5. Step 5: Solve for x
    x = 15,270,108.92/3,798.02
  6. Step 6: Final answer
    x = 4,020.54

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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.