Home / 3,941.39-5,912.17-1,689.64

Finding the Fourth Proportional to 3,941.39, 5,912.17 and 1,689.64

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Solution

The fourth proportional to 3,941.39, 5,912.17 and 1,689.64 is: 2,534.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,941.39 : 5,912.17 = 1,689.64 : x
  2. Step 2: Convert to fraction form
    3,941.39/5,912.17 = 1,689.64/x
  3. Step 3: Cross multiply
    3,941.39x = 5,912.17 × 1,689.64
  4. Step 4: Simplify right side
    3,941.39x = 9,989,419.91
  5. Step 5: Solve for x
    x = 9,989,419.91/3,941.39
  6. Step 6: Final answer
    x = 2,534.49

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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.