Home / 3,651.81-5,040.45-2,253.75

Finding the Fourth Proportional to 3,651.81, 5,040.45 and 2,253.75

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Solution

The fourth proportional to 3,651.81, 5,040.45 and 2,253.75 is: 3,110.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,651.81 : 5,040.45 = 2,253.75 : x
  2. Step 2: Convert to fraction form
    3,651.81/5,040.45 = 2,253.75/x
  3. Step 3: Cross multiply
    3,651.81x = 5,040.45 × 2,253.75
  4. Step 4: Simplify right side
    3,651.81x = 11,359,914.19
  5. Step 5: Solve for x
    x = 11,359,914.19/3,651.81
  6. Step 6: Final answer
    x = 3,110.76

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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.