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Finding the Fourth Proportional to 1,308.33, 1,950.95 and 1,126.89

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Solution

The fourth proportional to 1,308.33, 1,950.95 and 1,126.89 is: 1,680.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308.33 : 1,950.95 = 1,126.89 : x
  2. Step 2: Convert to fraction form
    1,308.33/1,950.95 = 1,126.89/x
  3. Step 3: Cross multiply
    1,308.33x = 1,950.95 × 1,126.89
  4. Step 4: Simplify right side
    1,308.33x = 2,198,508.86
  5. Step 5: Solve for x
    x = 2,198,508.86/1,308.33
  6. Step 6: Final answer
    x = 1,680.39

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.