Home / 1,938.93-2,908.06-551.95

Finding the Fourth Proportional to 1,938.93, 2,908.06 and 551.95

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Solution

The fourth proportional to 1,938.93, 2,908.06 and 551.95 is: 827.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.93 : 2,908.06 = 551.95 : x
  2. Step 2: Convert to fraction form
    1,938.93/2,908.06 = 551.95/x
  3. Step 3: Cross multiply
    1,938.93x = 2,908.06 × 551.95
  4. Step 4: Simplify right side
    1,938.93x = 1,605,103.72
  5. Step 5: Solve for x
    x = 1,605,103.72/1,938.93
  6. Step 6: Final answer
    x = 827.83

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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.