Home / 4,279.81-5,905.71-2,391.24

Finding the Fourth Proportional to 4,279.81, 5,905.71 and 2,391.24

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Solution

The fourth proportional to 4,279.81, 5,905.71 and 2,391.24 is: 3,299.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279.81 : 5,905.71 = 2,391.24 : x
  2. Step 2: Convert to fraction form
    4,279.81/5,905.71 = 2,391.24/x
  3. Step 3: Cross multiply
    4,279.81x = 5,905.71 × 2,391.24
  4. Step 4: Simplify right side
    4,279.81x = 14,121,969.98
  5. Step 5: Solve for x
    x = 14,121,969.98/4,279.81
  6. Step 6: Final answer
    x = 3,299.67

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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.