Home / 5,112.88-7,627.74-4,635.42

Finding the Fourth Proportional to 5,112.88, 7,627.74 and 4,635.42

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Solution

The fourth proportional to 5,112.88, 7,627.74 and 4,635.42 is: 6,915.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112.88 : 7,627.74 = 4,635.42 : x
  2. Step 2: Convert to fraction form
    5,112.88/7,627.74 = 4,635.42/x
  3. Step 3: Cross multiply
    5,112.88x = 7,627.74 × 4,635.42
  4. Step 4: Simplify right side
    5,112.88x = 35,357,778.55
  5. Step 5: Solve for x
    x = 35,357,778.55/5,112.88
  6. Step 6: Final answer
    x = 6,915.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.