Home / 7,425.76-11,126.92-2,739.32

Finding the Fourth Proportional to 7,425.76, 11,126.92 and 2,739.32

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Solution

The fourth proportional to 7,425.76, 11,126.92 and 2,739.32 is: 4,104.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,425.76 : 11,126.92 = 2,739.32 : x
  2. Step 2: Convert to fraction form
    7,425.76/11,126.92 = 2,739.32/x
  3. Step 3: Cross multiply
    7,425.76x = 11,126.92 × 2,739.32
  4. Step 4: Simplify right side
    7,425.76x = 30,480,178.87
  5. Step 5: Solve for x
    x = 30,480,178.87/7,425.76
  6. Step 6: Final answer
    x = 4,104.65

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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.