Home / 3,615.92-5,421.92-1,243.36

Finding the Fourth Proportional to 3,615.92, 5,421.92 and 1,243.36

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Solution

The fourth proportional to 3,615.92, 5,421.92 and 1,243.36 is: 1,864.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.92 : 5,421.92 = 1,243.36 : x
  2. Step 2: Convert to fraction form
    3,615.92/5,421.92 = 1,243.36/x
  3. Step 3: Cross multiply
    3,615.92x = 5,421.92 × 1,243.36
  4. Step 4: Simplify right side
    3,615.92x = 6,741,398.45
  5. Step 5: Solve for x
    x = 6,741,398.45/3,615.92
  6. Step 6: Final answer
    x = 1,864.37

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1.5x scale

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.