Home / 7,182.20-9,911.41-4,197.43

Finding the Fourth Proportional to 7,182.20, 9,911.41 and 4,197.43

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Solution

The fourth proportional to 7,182.20, 9,911.41 and 4,197.43 is: 5,792.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182.20 : 9,911.41 = 4,197.43 : x
  2. Step 2: Convert to fraction form
    7,182.20/9,911.41 = 4,197.43/x
  3. Step 3: Cross multiply
    7,182.20x = 9,911.41 × 4,197.43
  4. Step 4: Simplify right side
    7,182.20x = 41,602,451.57
  5. Step 5: Solve for x
    x = 41,602,451.57/7,182.20
  6. Step 6: Final answer
    x = 5,792.44

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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.