Home / 3,615.53-5,423.85-1,394.28

Finding the Fourth Proportional to 3,615.53, 5,423.85 and 1,394.28

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Solution

The fourth proportional to 3,615.53, 5,423.85 and 1,394.28 is: 2,091.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.53 : 5,423.85 = 1,394.28 : x
  2. Step 2: Convert to fraction form
    3,615.53/5,423.85 = 1,394.28/x
  3. Step 3: Cross multiply
    3,615.53x = 5,423.85 × 1,394.28
  4. Step 4: Simplify right side
    3,615.53x = 7,562,365.58
  5. Step 5: Solve for x
    x = 7,562,365.58/3,615.53
  6. Step 6: Final answer
    x = 2,091.64

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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.