Home / 2,113.08-3,171.55-1,073.80

Finding the Fourth Proportional to 2,113.08, 3,171.55 and 1,073.80

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Solution

The fourth proportional to 2,113.08, 3,171.55 and 1,073.80 is: 1,611.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113.08 : 3,171.55 = 1,073.80 : x
  2. Step 2: Convert to fraction form
    2,113.08/3,171.55 = 1,073.80/x
  3. Step 3: Cross multiply
    2,113.08x = 3,171.55 × 1,073.80
  4. Step 4: Simplify right side
    2,113.08x = 3,405,610.39
  5. Step 5: Solve for x
    x = 3,405,610.39/2,113.08
  6. Step 6: Final answer
    x = 1,611.68

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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.