Home / 2,790.73-4,180.56-2,098.18

Finding the Fourth Proportional to 2,790.73, 4,180.56 and 2,098.18

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Solution

The fourth proportional to 2,790.73, 4,180.56 and 2,098.18 is: 3,143.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.73 : 4,180.56 = 2,098.18 : x
  2. Step 2: Convert to fraction form
    2,790.73/4,180.56 = 2,098.18/x
  3. Step 3: Cross multiply
    2,790.73x = 4,180.56 × 2,098.18
  4. Step 4: Simplify right side
    2,790.73x = 8,771,567.38
  5. Step 5: Solve for x
    x = 8,771,567.38/2,790.73
  6. Step 6: Final answer
    x = 3,143.11

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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.