Home / 5,274.92-7,912.16-1,379.24

Finding the Fourth Proportional to 5,274.92, 7,912.16 and 1,379.24

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Solution

The fourth proportional to 5,274.92, 7,912.16 and 1,379.24 is: 2,068.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,274.92 : 7,912.16 = 1,379.24 : x
  2. Step 2: Convert to fraction form
    5,274.92/7,912.16 = 1,379.24/x
  3. Step 3: Cross multiply
    5,274.92x = 7,912.16 × 1,379.24
  4. Step 4: Simplify right side
    5,274.92x = 10,912,767.56
  5. Step 5: Solve for x
    x = 10,912,767.56/5,274.92
  6. Step 6: Final answer
    x = 2,068.80

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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.