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Finding the Fourth Proportional to 3,150.88, 4,726.92 and 1,419.50

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Solution

The fourth proportional to 3,150.88, 4,726.92 and 1,419.50 is: 2,129.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,150.88 : 4,726.92 = 1,419.50 : x
  2. Step 2: Convert to fraction form
    3,150.88/4,726.92 = 1,419.50/x
  3. Step 3: Cross multiply
    3,150.88x = 4,726.92 × 1,419.50
  4. Step 4: Simplify right side
    3,150.88x = 6,709,862.94
  5. Step 5: Solve for x
    x = 6,709,862.94/3,150.88
  6. Step 6: Final answer
    x = 2,129.52

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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.