Home / 5,620.42-8,431.55-2,110.70

Finding the Fourth Proportional to 5,620.42, 8,431.55 and 2,110.70

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Solution

The fourth proportional to 5,620.42, 8,431.55 and 2,110.70 is: 3,166.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.42 : 8,431.55 = 2,110.70 : x
  2. Step 2: Convert to fraction form
    5,620.42/8,431.55 = 2,110.70/x
  3. Step 3: Cross multiply
    5,620.42x = 8,431.55 × 2,110.70
  4. Step 4: Simplify right side
    5,620.42x = 17,796,493.66
  5. Step 5: Solve for x
    x = 17,796,493.66/5,620.42
  6. Step 6: Final answer
    x = 3,166.40

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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.