Home / 2,765.50-4,138.46-1,724.66

Finding the Fourth Proportional to 2,765.50, 4,138.46 and 1,724.66

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Solution

The fourth proportional to 2,765.50, 4,138.46 and 1,724.66 is: 2,580.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,765.50 : 4,138.46 = 1,724.66 : x
  2. Step 2: Convert to fraction form
    2,765.50/4,138.46 = 1,724.66/x
  3. Step 3: Cross multiply
    2,765.50x = 4,138.46 × 1,724.66
  4. Step 4: Simplify right side
    2,765.50x = 7,137,436.42
  5. Step 5: Solve for x
    x = 7,137,436.42/2,765.50
  6. Step 6: Final answer
    x = 2,580.88

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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.