Home / 4,750.20-7,124.44-1,286.64

Finding the Fourth Proportional to 4,750.20, 7,124.44 and 1,286.64

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Solution

The fourth proportional to 4,750.20, 7,124.44 and 1,286.64 is: 1,929.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,750.20 : 7,124.44 = 1,286.64 : x
  2. Step 2: Convert to fraction form
    4,750.20/7,124.44 = 1,286.64/x
  3. Step 3: Cross multiply
    4,750.20x = 7,124.44 × 1,286.64
  4. Step 4: Simplify right side
    4,750.20x = 9,166,589.48
  5. Step 5: Solve for x
    x = 9,166,589.48/4,750.20
  6. Step 6: Final answer
    x = 1,929.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.