Home / 4,279.73-5,905.64-2,391.06

Finding the Fourth Proportional to 4,279.73, 5,905.64 and 2,391.06

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Solution

The fourth proportional to 4,279.73, 5,905.64 and 2,391.06 is: 3,299.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279.73 : 5,905.64 = 2,391.06 : x
  2. Step 2: Convert to fraction form
    4,279.73/5,905.64 = 2,391.06/x
  3. Step 3: Cross multiply
    4,279.73x = 5,905.64 × 2,391.06
  4. Step 4: Simplify right side
    4,279.73x = 14,120,727.62
  5. Step 5: Solve for x
    x = 14,120,727.62/4,279.73
  6. Step 6: Final answer
    x = 3,299.45

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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.