Home / 3,511.52-4,845.12-2,114.72

Finding the Fourth Proportional to 3,511.52, 4,845.12 and 2,114.72

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Solution

The fourth proportional to 3,511.52, 4,845.12 and 2,114.72 is: 2,917.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.52 : 4,845.12 = 2,114.72 : x
  2. Step 2: Convert to fraction form
    3,511.52/4,845.12 = 2,114.72/x
  3. Step 3: Cross multiply
    3,511.52x = 4,845.12 × 2,114.72
  4. Step 4: Simplify right side
    3,511.52x = 10,246,072.17
  5. Step 5: Solve for x
    x = 10,246,072.17/3,511.52
  6. Step 6: Final answer
    x = 2,917.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.