Home / 3,728.61-5,145.15-2,049.87

Finding the Fourth Proportional to 3,728.61, 5,145.15 and 2,049.87

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Solution

The fourth proportional to 3,728.61, 5,145.15 and 2,049.87 is: 2,828.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,728.61 : 5,145.15 = 2,049.87 : x
  2. Step 2: Convert to fraction form
    3,728.61/5,145.15 = 2,049.87/x
  3. Step 3: Cross multiply
    3,728.61x = 5,145.15 × 2,049.87
  4. Step 4: Simplify right side
    3,728.61x = 10,546,888.63
  5. Step 5: Solve for x
    x = 10,546,888.63/3,728.61
  6. Step 6: Final answer
    x = 2,828.64

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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.