Home / 4,622.85-6,931.26-2,160.09

Finding the Fourth Proportional to 4,622.85, 6,931.26 and 2,160.09

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Solution

The fourth proportional to 4,622.85, 6,931.26 and 2,160.09 is: 3,238.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,622.85 : 6,931.26 = 2,160.09 : x
  2. Step 2: Convert to fraction form
    4,622.85/6,931.26 = 2,160.09/x
  3. Step 3: Cross multiply
    4,622.85x = 6,931.26 × 2,160.09
  4. Step 4: Simplify right side
    4,622.85x = 14,972,145.41
  5. Step 5: Solve for x
    x = 14,972,145.41/4,622.85
  6. Step 6: Final answer
    x = 3,238.73

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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.