Home / 4,185.76-6,278.68-1,264.09

Finding the Fourth Proportional to 4,185.76, 6,278.68 and 1,264.09

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Solution

The fourth proportional to 4,185.76, 6,278.68 and 1,264.09 is: 1,896.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,185.76 : 6,278.68 = 1,264.09 : x
  2. Step 2: Convert to fraction form
    4,185.76/6,278.68 = 1,264.09/x
  3. Step 3: Cross multiply
    4,185.76x = 6,278.68 × 1,264.09
  4. Step 4: Simplify right side
    4,185.76x = 7,936,816.60
  5. Step 5: Solve for x
    x = 7,936,816.60/4,185.76
  6. Step 6: Final answer
    x = 1,896.15

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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.