Home / 5,273.28-7,279.68-3,176.64

Finding the Fourth Proportional to 5,273.28, 7,279.68 and 3,176.64

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Solution

The fourth proportional to 5,273.28, 7,279.68 and 3,176.64 is: 4,385.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,273.28 : 7,279.68 = 3,176.64 : x
  2. Step 2: Convert to fraction form
    5,273.28/7,279.68 = 3,176.64/x
  3. Step 3: Cross multiply
    5,273.28x = 7,279.68 × 3,176.64
  4. Step 4: Simplify right side
    5,273.28x = 23,124,922.68
  5. Step 5: Solve for x
    x = 23,124,922.68/5,273.28
  6. Step 6: Final answer
    x = 4,385.30

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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.