Home / 7,119.36-10,680.99-3,424.68

Finding the Fourth Proportional to 7,119.36, 10,680.99 and 3,424.68

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Solution

The fourth proportional to 7,119.36, 10,680.99 and 3,424.68 is: 5,137.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,119.36 : 10,680.99 = 3,424.68 : x
  2. Step 2: Convert to fraction form
    7,119.36/10,680.99 = 3,424.68/x
  3. Step 3: Cross multiply
    7,119.36x = 10,680.99 × 3,424.68
  4. Step 4: Simplify right side
    7,119.36x = 36,578,972.83
  5. Step 5: Solve for x
    x = 36,578,972.83/7,119.36
  6. Step 6: Final answer
    x = 5,137.96

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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.