Home / 4,253.42-6,380.74-1,786.70

Finding the Fourth Proportional to 4,253.42, 6,380.74 and 1,786.70

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Solution

The fourth proportional to 4,253.42, 6,380.74 and 1,786.70 is: 2,680.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,253.42 : 6,380.74 = 1,786.70 : x
  2. Step 2: Convert to fraction form
    4,253.42/6,380.74 = 1,786.70/x
  3. Step 3: Cross multiply
    4,253.42x = 6,380.74 × 1,786.70
  4. Step 4: Simplify right side
    4,253.42x = 11,400,468.16
  5. Step 5: Solve for x
    x = 11,400,468.16/4,253.42
  6. Step 6: Final answer
    x = 2,680.31

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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.