Home / 3,615.11-5,422.90-1,243.33

Finding the Fourth Proportional to 3,615.11, 5,422.90 and 1,243.33

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Solution

The fourth proportional to 3,615.11, 5,422.90 and 1,243.33 is: 1,865.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.11 : 5,422.90 = 1,243.33 : x
  2. Step 2: Convert to fraction form
    3,615.11/5,422.90 = 1,243.33/x
  3. Step 3: Cross multiply
    3,615.11x = 5,422.90 × 1,243.33
  4. Step 4: Simplify right side
    3,615.11x = 6,742,470.43
  5. Step 5: Solve for x
    x = 6,742,470.43/3,615.11
  6. Step 6: Final answer
    x = 1,865.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.