Home / 4,639.86-6,396.30-2,868.39

Finding the Fourth Proportional to 4,639.86, 6,396.30 and 2,868.39

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Solution

The fourth proportional to 4,639.86, 6,396.30 and 2,868.39 is: 3,954.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,639.86 : 6,396.30 = 2,868.39 : x
  2. Step 2: Convert to fraction form
    4,639.86/6,396.30 = 2,868.39/x
  3. Step 3: Cross multiply
    4,639.86x = 6,396.30 × 2,868.39
  4. Step 4: Simplify right side
    4,639.86x = 18,347,082.96
  5. Step 5: Solve for x
    x = 18,347,082.96/4,639.86
  6. Step 6: Final answer
    x = 3,954.23

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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.