Home / 4,188.14-6,279.47-2,105.02

Finding the Fourth Proportional to 4,188.14, 6,279.47 and 2,105.02

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Solution

The fourth proportional to 4,188.14, 6,279.47 and 2,105.02 is: 3,156.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,188.14 : 6,279.47 = 2,105.02 : x
  2. Step 2: Convert to fraction form
    4,188.14/6,279.47 = 2,105.02/x
  3. Step 3: Cross multiply
    4,188.14x = 6,279.47 × 2,105.02
  4. Step 4: Simplify right side
    4,188.14x = 13,218,409.94
  5. Step 5: Solve for x
    x = 13,218,409.94/4,188.14
  6. Step 6: Final answer
    x = 3,156.15

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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.