Home / 4,269.68-6,404.88-3,122.72

Finding the Fourth Proportional to 4,269.68, 6,404.88 and 3,122.72

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Solution

The fourth proportional to 4,269.68, 6,404.88 and 3,122.72 is: 4,684.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,269.68 : 6,404.88 = 3,122.72 : x
  2. Step 2: Convert to fraction form
    4,269.68/6,404.88 = 3,122.72/x
  3. Step 3: Cross multiply
    4,269.68x = 6,404.88 × 3,122.72
  4. Step 4: Simplify right side
    4,269.68x = 20,000,646.87
  5. Step 5: Solve for x
    x = 20,000,646.87/4,269.68
  6. Step 6: Final answer
    x = 4,684.34

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1.5x scale

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.