Home / 5,125.85-7,074.20-3,137.73

Finding the Fourth Proportional to 5,125.85, 7,074.20 and 3,137.73

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Solution

The fourth proportional to 5,125.85, 7,074.20 and 3,137.73 is: 4,330.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.85 : 7,074.20 = 3,137.73 : x
  2. Step 2: Convert to fraction form
    5,125.85/7,074.20 = 3,137.73/x
  3. Step 3: Cross multiply
    5,125.85x = 7,074.20 × 3,137.73
  4. Step 4: Simplify right side
    5,125.85x = 22,196,929.57
  5. Step 5: Solve for x
    x = 22,196,929.57/5,125.85
  6. Step 6: Final answer
    x = 4,330.39

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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.