Home / 4,185.91-6,279.69-1,264.39

Finding the Fourth Proportional to 4,185.91, 6,279.69 and 1,264.39

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Solution

The fourth proportional to 4,185.91, 6,279.69 and 1,264.39 is: 1,896.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,185.91 : 6,279.69 = 1,264.39 : x
  2. Step 2: Convert to fraction form
    4,185.91/6,279.69 = 1,264.39/x
  3. Step 3: Cross multiply
    4,185.91x = 6,279.69 × 1,264.39
  4. Step 4: Simplify right side
    4,185.91x = 7,939,977.24
  5. Step 5: Solve for x
    x = 7,939,977.24/4,185.91
  6. Step 6: Final answer
    x = 1,896.83

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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.