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Finding the Fourth Proportional to 5,919.76, 8,877.55 and 1,969.95

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Solution

The fourth proportional to 5,919.76, 8,877.55 and 1,969.95 is: 2,954.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,919.76 : 8,877.55 = 1,969.95 : x
  2. Step 2: Convert to fraction form
    5,919.76/8,877.55 = 1,969.95/x
  3. Step 3: Cross multiply
    5,919.76x = 8,877.55 × 1,969.95
  4. Step 4: Simplify right side
    5,919.76x = 17,488,329.62
  5. Step 5: Solve for x
    x = 17,488,329.62/5,919.76
  6. Step 6: Final answer
    x = 2,954.23

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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.