Home / 3,638.17-5,452.39-1,686.07

Finding the Fourth Proportional to 3,638.17, 5,452.39 and 1,686.07

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Solution

The fourth proportional to 3,638.17, 5,452.39 and 1,686.07 is: 2,526.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.17 : 5,452.39 = 1,686.07 : x
  2. Step 2: Convert to fraction form
    3,638.17/5,452.39 = 1,686.07/x
  3. Step 3: Cross multiply
    3,638.17x = 5,452.39 × 1,686.07
  4. Step 4: Simplify right side
    3,638.17x = 9,193,111.21
  5. Step 5: Solve for x
    x = 9,193,111.21/3,638.17
  6. Step 6: Final answer
    x = 2,526.85

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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.