Home / 2,680.83-4,018.11-1,511.39

Finding the Fourth Proportional to 2,680.83, 4,018.11 and 1,511.39

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Solution

The fourth proportional to 2,680.83, 4,018.11 and 1,511.39 is: 2,265.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680.83 : 4,018.11 = 1,511.39 : x
  2. Step 2: Convert to fraction form
    2,680.83/4,018.11 = 1,511.39/x
  3. Step 3: Cross multiply
    2,680.83x = 4,018.11 × 1,511.39
  4. Step 4: Simplify right side
    2,680.83x = 6,072,935.65
  5. Step 5: Solve for x
    x = 6,072,935.65/2,680.83
  6. Step 6: Final answer
    x = 2,265.32

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1.5x scale

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.