Home / 1,214.88-1,821.18-484.26

Finding the Fourth Proportional to 1,214.88, 1,821.18 and 484.26

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Solution

The fourth proportional to 1,214.88, 1,821.18 and 484.26 is: 725.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214.88 : 1,821.18 = 484.26 : x
  2. Step 2: Convert to fraction form
    1,214.88/1,821.18 = 484.26/x
  3. Step 3: Cross multiply
    1,214.88x = 1,821.18 × 484.26
  4. Step 4: Simplify right side
    1,214.88x = 881,924.63
  5. Step 5: Solve for x
    x = 881,924.63/1,214.88
  6. Step 6: Final answer
    x = 725.94

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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.