Home / 2,790.90-4,177.71-2,093.70

Finding the Fourth Proportional to 2,790.90, 4,177.71 and 2,093.70

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Solution

The fourth proportional to 2,790.90, 4,177.71 and 2,093.70 is: 3,134.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.90 : 4,177.71 = 2,093.70 : x
  2. Step 2: Convert to fraction form
    2,790.90/4,177.71 = 2,093.70/x
  3. Step 3: Cross multiply
    2,790.90x = 4,177.71 × 2,093.70
  4. Step 4: Simplify right side
    2,790.90x = 8,746,871.43
  5. Step 5: Solve for x
    x = 8,746,871.43/2,790.90
  6. Step 6: Final answer
    x = 3,134.07

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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.