Home / 4,185.92-6,279.98-1,264.31

Finding the Fourth Proportional to 4,185.92, 6,279.98 and 1,264.31

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Solution

The fourth proportional to 4,185.92, 6,279.98 and 1,264.31 is: 1,896.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,185.92 : 6,279.98 = 1,264.31 : x
  2. Step 2: Convert to fraction form
    4,185.92/6,279.98 = 1,264.31/x
  3. Step 3: Cross multiply
    4,185.92x = 6,279.98 × 1,264.31
  4. Step 4: Simplify right side
    4,185.92x = 7,939,803.79
  5. Step 5: Solve for x
    x = 7,939,803.79/4,185.92
  6. Step 6: Final answer
    x = 1,896.79

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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.