Home / 4,279.37-5,905.34-2,687.65

Finding the Fourth Proportional to 4,279.37, 5,905.34 and 2,687.65

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Solution

The fourth proportional to 4,279.37, 5,905.34 and 2,687.65 is: 3,708.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279.37 : 5,905.34 = 2,687.65 : x
  2. Step 2: Convert to fraction form
    4,279.37/5,905.34 = 2,687.65/x
  3. Step 3: Cross multiply
    4,279.37x = 5,905.34 × 2,687.65
  4. Step 4: Simplify right side
    4,279.37x = 15,871,468.93
  5. Step 5: Solve for x
    x = 15,871,468.93/4,279.37
  6. Step 6: Final answer
    x = 3,708.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.