Home / 7,679.20-11,510.82-3,724.62

Finding the Fourth Proportional to 7,679.20, 11,510.82 and 3,724.62

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Solution

The fourth proportional to 7,679.20, 11,510.82 and 3,724.62 is: 5,583.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,679.20 : 11,510.82 = 3,724.62 : x
  2. Step 2: Convert to fraction form
    7,679.20/11,510.82 = 3,724.62/x
  3. Step 3: Cross multiply
    7,679.20x = 11,510.82 × 3,724.62
  4. Step 4: Simplify right side
    7,679.20x = 42,873,430.39
  5. Step 5: Solve for x
    x = 42,873,430.39/7,679.20
  6. Step 6: Final answer
    x = 5,583.06

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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.