Home / 2,142.18-3,207.60-1,850.58

Finding the Fourth Proportional to 2,142.18, 3,207.60 and 1,850.58

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Solution

The fourth proportional to 2,142.18, 3,207.60 and 1,850.58 is: 2,770.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,142.18 : 3,207.60 = 1,850.58 : x
  2. Step 2: Convert to fraction form
    2,142.18/3,207.60 = 1,850.58/x
  3. Step 3: Cross multiply
    2,142.18x = 3,207.60 × 1,850.58
  4. Step 4: Simplify right side
    2,142.18x = 5,935,920.41
  5. Step 5: Solve for x
    x = 5,935,920.41/2,142.18
  6. Step 6: Final answer
    x = 2,770.97

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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.