Home / 3,638.52-5,453.51-1,686.62

Finding the Fourth Proportional to 3,638.52, 5,453.51 and 1,686.62

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Solution

The fourth proportional to 3,638.52, 5,453.51 and 1,686.62 is: 2,527.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.52 : 5,453.51 = 1,686.62 : x
  2. Step 2: Convert to fraction form
    3,638.52/5,453.51 = 1,686.62/x
  3. Step 3: Cross multiply
    3,638.52x = 5,453.51 × 1,686.62
  4. Step 4: Simplify right side
    3,638.52x = 9,197,963.34
  5. Step 5: Solve for x
    x = 9,197,963.34/3,638.52
  6. Step 6: Final answer
    x = 2,527.94

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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.