Home / 1,282.59-1,923.89-551.70

Finding the Fourth Proportional to 1,282.59, 1,923.89 and 551.70

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Solution

The fourth proportional to 1,282.59, 1,923.89 and 551.70 is: 827.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282.59 : 1,923.89 = 551.70 : x
  2. Step 2: Convert to fraction form
    1,282.59/1,923.89 = 551.70/x
  3. Step 3: Cross multiply
    1,282.59x = 1,923.89 × 551.70
  4. Step 4: Simplify right side
    1,282.59x = 1,061,407.35
  5. Step 5: Solve for x
    x = 1,061,407.35/1,282.59
  6. Step 6: Final answer
    x = 827.55

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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.