Home / 3,760.25-5,185.31-3,121.16

Finding the Fourth Proportional to 3,760.25, 5,185.31 and 3,121.16

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Solution

The fourth proportional to 3,760.25, 5,185.31 and 3,121.16 is: 4,304.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,760.25 : 5,185.31 = 3,121.16 : x
  2. Step 2: Convert to fraction form
    3,760.25/5,185.31 = 3,121.16/x
  3. Step 3: Cross multiply
    3,760.25x = 5,185.31 × 3,121.16
  4. Step 4: Simplify right side
    3,760.25x = 16,184,140.63
  5. Step 5: Solve for x
    x = 16,184,140.63/3,760.25
  6. Step 6: Final answer
    x = 4,304.01

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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.