Home / 1,230.21-1,834.50-1,219.26

Finding the Fourth Proportional to 1,230.21, 1,834.50 and 1,219.26

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Solution

The fourth proportional to 1,230.21, 1,834.50 and 1,219.26 is: 1,818.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230.21 : 1,834.50 = 1,219.26 : x
  2. Step 2: Convert to fraction form
    1,230.21/1,834.50 = 1,219.26/x
  3. Step 3: Cross multiply
    1,230.21x = 1,834.50 × 1,219.26
  4. Step 4: Simplify right side
    1,230.21x = 2,236,732.47
  5. Step 5: Solve for x
    x = 2,236,732.47/1,230.21
  6. Step 6: Final answer
    x = 1,818.17

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.