Home / 2,923.24-4,384.86-1,279

Finding the Fourth Proportional to 2,923.24, 4,384.86 and 1,279

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Solution

The fourth proportional to 2,923.24, 4,384.86 and 1,279 is: 1,918.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,923.24 : 4,384.86 = 1,279 : x
  2. Step 2: Convert to fraction form
    2,923.24/4,384.86 = 1,279/x
  3. Step 3: Cross multiply
    2,923.24x = 4,384.86 × 1,279
  4. Step 4: Simplify right side
    2,923.24x = 5,608,235.94
  5. Step 5: Solve for x
    x = 5,608,235.94/2,923.24
  6. Step 6: Final answer
    x = 1,918.50

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Double scale
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Similar ratio
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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.