Home / 1,282.60-1,922.58-551.56

Finding the Fourth Proportional to 1,282.60, 1,922.58 and 551.56

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Solution

The fourth proportional to 1,282.60, 1,922.58 and 551.56 is: 826.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282.60 : 1,922.58 = 551.56 : x
  2. Step 2: Convert to fraction form
    1,282.60/1,922.58 = 551.56/x
  3. Step 3: Cross multiply
    1,282.60x = 1,922.58 × 551.56
  4. Step 4: Simplify right side
    1,282.60x = 1,060,418.22
  5. Step 5: Solve for x
    x = 1,060,418.22/1,282.60
  6. Step 6: Final answer
    x = 826.77

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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.