Home / 2,101.05-3,150.11-930.41

Finding the Fourth Proportional to 2,101.05, 3,150.11 and 930.41

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Solution

The fourth proportional to 2,101.05, 3,150.11 and 930.41 is: 1,394.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101.05 : 3,150.11 = 930.41 : x
  2. Step 2: Convert to fraction form
    2,101.05/3,150.11 = 930.41/x
  3. Step 3: Cross multiply
    2,101.05x = 3,150.11 × 930.41
  4. Step 4: Simplify right side
    2,101.05x = 2,930,909.26
  5. Step 5: Solve for x
    x = 2,930,909.26/2,101.05
  6. Step 6: Final answer
    x = 1,394.97

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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.