Home / 7,679.81-11,519.89-2,414.75

Finding the Fourth Proportional to 7,679.81, 11,519.89 and 2,414.75

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Solution

The fourth proportional to 7,679.81, 11,519.89 and 2,414.75 is: 3,622.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,679.81 : 11,519.89 = 2,414.75 : x
  2. Step 2: Convert to fraction form
    7,679.81/11,519.89 = 2,414.75/x
  3. Step 3: Cross multiply
    7,679.81x = 11,519.89 × 2,414.75
  4. Step 4: Simplify right side
    7,679.81x = 27,817,590.74
  5. Step 5: Solve for x
    x = 27,817,590.74/7,679.81
  6. Step 6: Final answer
    x = 3,622.17

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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.