Home / 1,601.76-2,399.94-1,138.62

Finding the Fourth Proportional to 1,601.76, 2,399.94 and 1,138.62

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Solution

The fourth proportional to 1,601.76, 2,399.94 and 1,138.62 is: 1,706.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,601.76 : 2,399.94 = 1,138.62 : x
  2. Step 2: Convert to fraction form
    1,601.76/2,399.94 = 1,138.62/x
  3. Step 3: Cross multiply
    1,601.76x = 2,399.94 × 1,138.62
  4. Step 4: Simplify right side
    1,601.76x = 2,732,619.68
  5. Step 5: Solve for x
    x = 2,732,619.68/1,601.76
  6. Step 6: Final answer
    x = 1,706.01

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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.