Home / 3,423-4,748.97-3,390.60

Finding the Fourth Proportional to 3,423, 4,748.97 and 3,390.60

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Solution

The fourth proportional to 3,423, 4,748.97 and 3,390.60 is: 4,704.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423 : 4,748.97 = 3,390.60 : x
  2. Step 2: Convert to fraction form
    3,423/4,748.97 = 3,390.60/x
  3. Step 3: Cross multiply
    3,423x = 4,748.97 × 3,390.60
  4. Step 4: Simplify right side
    3,423x = 16,101,857.68
  5. Step 5: Solve for x
    x = 16,101,857.68/3,423
  6. Step 6: Final answer
    x = 4,704.02

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.