Home / 1,786.62-2,463.57-1,226.10

Finding the Fourth Proportional to 1,786.62, 2,463.57 and 1,226.10

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Solution

The fourth proportional to 1,786.62, 2,463.57 and 1,226.10 is: 1,690.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786.62 : 2,463.57 = 1,226.10 : x
  2. Step 2: Convert to fraction form
    1,786.62/2,463.57 = 1,226.10/x
  3. Step 3: Cross multiply
    1,786.62x = 2,463.57 × 1,226.10
  4. Step 4: Simplify right side
    1,786.62x = 3,020,583.18
  5. Step 5: Solve for x
    x = 3,020,583.18/1,786.62
  6. Step 6: Final answer
    x = 1,690.67

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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.