Home / 3,977.71-5,966.56-1,511.95

Finding the Fourth Proportional to 3,977.71, 5,966.56 and 1,511.95

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Solution

The fourth proportional to 3,977.71, 5,966.56 and 1,511.95 is: 2,267.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.71 : 5,966.56 = 1,511.95 : x
  2. Step 2: Convert to fraction form
    3,977.71/5,966.56 = 1,511.95/x
  3. Step 3: Cross multiply
    3,977.71x = 5,966.56 × 1,511.95
  4. Step 4: Simplify right side
    3,977.71x = 9,021,138.55
  5. Step 5: Solve for x
    x = 9,021,138.55/3,977.71
  6. Step 6: Final answer
    x = 2,267.92

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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.