Home / 5,536.43-7,640.61-3,178.92

Finding the Fourth Proportional to 5,536.43, 7,640.61 and 3,178.92

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Solution

The fourth proportional to 5,536.43, 7,640.61 and 3,178.92 is: 4,387.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,536.43 : 7,640.61 = 3,178.92 : x
  2. Step 2: Convert to fraction form
    5,536.43/7,640.61 = 3,178.92/x
  3. Step 3: Cross multiply
    5,536.43x = 7,640.61 × 3,178.92
  4. Step 4: Simplify right side
    5,536.43x = 24,288,922.55
  5. Step 5: Solve for x
    x = 24,288,922.55/5,536.43
  6. Step 6: Final answer
    x = 4,387.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.