Home / 3,854.10-5,778.70-2,123.94

Finding the Fourth Proportional to 3,854.10, 5,778.70 and 2,123.94

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Solution

The fourth proportional to 3,854.10, 5,778.70 and 2,123.94 is: 3,184.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,854.10 : 5,778.70 = 2,123.94 : x
  2. Step 2: Convert to fraction form
    3,854.10/5,778.70 = 2,123.94/x
  3. Step 3: Cross multiply
    3,854.10x = 5,778.70 × 2,123.94
  4. Step 4: Simplify right side
    3,854.10x = 12,273,612.08
  5. Step 5: Solve for x
    x = 12,273,612.08/3,854.10
  6. Step 6: Final answer
    x = 3,184.56

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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.