Home / 1,213.62-1,821.18-483.27

Finding the Fourth Proportional to 1,213.62, 1,821.18 and 483.27

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Solution

The fourth proportional to 1,213.62, 1,821.18 and 483.27 is: 725.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213.62 : 1,821.18 = 483.27 : x
  2. Step 2: Convert to fraction form
    1,213.62/1,821.18 = 483.27/x
  3. Step 3: Cross multiply
    1,213.62x = 1,821.18 × 483.27
  4. Step 4: Simplify right side
    1,213.62x = 880,116.64
  5. Step 5: Solve for x
    x = 880,116.64/1,213.62
  6. Step 6: Final answer
    x = 725.20

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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.