Home / 5,440.98-7,512.79-4,180.03

Finding the Fourth Proportional to 5,440.98, 7,512.79 and 4,180.03

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Solution

The fourth proportional to 5,440.98, 7,512.79 and 4,180.03 is: 5,771.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,440.98 : 7,512.79 = 4,180.03 : x
  2. Step 2: Convert to fraction form
    5,440.98/7,512.79 = 4,180.03/x
  3. Step 3: Cross multiply
    5,440.98x = 7,512.79 × 4,180.03
  4. Step 4: Simplify right side
    5,440.98x = 31,403,687.58
  5. Step 5: Solve for x
    x = 31,403,687.58/5,440.98
  6. Step 6: Final answer
    x = 5,771.70

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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.