Home / 5,180.39-7,148.94-2,822.54

Finding the Fourth Proportional to 5,180.39, 7,148.94 and 2,822.54

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Solution

The fourth proportional to 5,180.39, 7,148.94 and 2,822.54 is: 3,895.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.39 : 7,148.94 = 2,822.54 : x
  2. Step 2: Convert to fraction form
    5,180.39/7,148.94 = 2,822.54/x
  3. Step 3: Cross multiply
    5,180.39x = 7,148.94 × 2,822.54
  4. Step 4: Simplify right side
    5,180.39x = 20,178,169.11
  5. Step 5: Solve for x
    x = 20,178,169.11/5,180.39
  6. Step 6: Final answer
    x = 3,895.11

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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.