Home / 3,868.29-5,340.44-2,690.96

Finding the Fourth Proportional to 3,868.29, 5,340.44 and 2,690.96

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Solution

The fourth proportional to 3,868.29, 5,340.44 and 2,690.96 is: 3,715.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,868.29 : 5,340.44 = 2,690.96 : x
  2. Step 2: Convert to fraction form
    3,868.29/5,340.44 = 2,690.96/x
  3. Step 3: Cross multiply
    3,868.29x = 5,340.44 × 2,690.96
  4. Step 4: Simplify right side
    3,868.29x = 14,370,890.45
  5. Step 5: Solve for x
    x = 14,370,890.45/3,868.29
  6. Step 6: Final answer
    x = 3,715.05

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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.