Home / 2,910.48-4,011.69-2,279.97

Finding the Fourth Proportional to 2,910.48, 4,011.69 and 2,279.97

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Solution

The fourth proportional to 2,910.48, 4,011.69 and 2,279.97 is: 3,142.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.48 : 4,011.69 = 2,279.97 : x
  2. Step 2: Convert to fraction form
    2,910.48/4,011.69 = 2,279.97/x
  3. Step 3: Cross multiply
    2,910.48x = 4,011.69 × 2,279.97
  4. Step 4: Simplify right side
    2,910.48x = 9,146,532.85
  5. Step 5: Solve for x
    x = 9,146,532.85/2,910.48
  6. Step 6: Final answer
    x = 3,142.62

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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.