Home / 1,938.07-2,906.52-551.52

Finding the Fourth Proportional to 1,938.07, 2,906.52 and 551.52

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Solution

The fourth proportional to 1,938.07, 2,906.52 and 551.52 is: 827.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.07 : 2,906.52 = 551.52 : x
  2. Step 2: Convert to fraction form
    1,938.07/2,906.52 = 551.52/x
  3. Step 3: Cross multiply
    1,938.07x = 2,906.52 × 551.52
  4. Step 4: Simplify right side
    1,938.07x = 1,603,003.91
  5. Step 5: Solve for x
    x = 1,603,003.91/1,938.07
  6. Step 6: Final answer
    x = 827.11

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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.