Home / 3,538.45-5,308.37-1,689.72

Finding the Fourth Proportional to 3,538.45, 5,308.37 and 1,689.72

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Solution

The fourth proportional to 3,538.45, 5,308.37 and 1,689.72 is: 2,534.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,538.45 : 5,308.37 = 1,689.72 : x
  2. Step 2: Convert to fraction form
    3,538.45/5,308.37 = 1,689.72/x
  3. Step 3: Cross multiply
    3,538.45x = 5,308.37 × 1,689.72
  4. Step 4: Simplify right side
    3,538.45x = 8,969,658.96
  5. Step 5: Solve for x
    x = 8,969,658.96/3,538.45
  6. Step 6: Final answer
    x = 2,534.91

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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.