Home / 3,615.96-5,425.26-1,426.20

Finding the Fourth Proportional to 3,615.96, 5,425.26 and 1,426.20

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Solution

The fourth proportional to 3,615.96, 5,425.26 and 1,426.20 is: 2,139.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.96 : 5,425.26 = 1,426.20 : x
  2. Step 2: Convert to fraction form
    3,615.96/5,425.26 = 1,426.20/x
  3. Step 3: Cross multiply
    3,615.96x = 5,425.26 × 1,426.20
  4. Step 4: Simplify right side
    3,615.96x = 7,737,505.81
  5. Step 5: Solve for x
    x = 7,737,505.81/3,615.96
  6. Step 6: Final answer
    x = 2,139.82

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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.