Home / 5,627.24-8,431.74-3,429.30

Finding the Fourth Proportional to 5,627.24, 8,431.74 and 3,429.30

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Solution

The fourth proportional to 5,627.24, 8,431.74 and 3,429.30 is: 5,138.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,627.24 : 8,431.74 = 3,429.30 : x
  2. Step 2: Convert to fraction form
    5,627.24/8,431.74 = 3,429.30/x
  3. Step 3: Cross multiply
    5,627.24x = 8,431.74 × 3,429.30
  4. Step 4: Simplify right side
    5,627.24x = 28,914,965.98
  5. Step 5: Solve for x
    x = 28,914,965.98/5,627.24
  6. Step 6: Final answer
    x = 5,138.39

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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.