Home / 3,651.45-5,040.10-3,159.38

Finding the Fourth Proportional to 3,651.45, 5,040.10 and 3,159.38

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Solution

The fourth proportional to 3,651.45, 5,040.10 and 3,159.38 is: 4,360.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,651.45 : 5,040.10 = 3,159.38 : x
  2. Step 2: Convert to fraction form
    3,651.45/5,040.10 = 3,159.38/x
  3. Step 3: Cross multiply
    3,651.45x = 5,040.10 × 3,159.38
  4. Step 4: Simplify right side
    3,651.45x = 15,923,558.04
  5. Step 5: Solve for x
    x = 15,923,558.04/3,651.45
  6. Step 6: Final answer
    x = 4,360.89

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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.