Home / 2,493.18-3,742.20-1,919.70

Finding the Fourth Proportional to 2,493.18, 3,742.20 and 1,919.70

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Solution

The fourth proportional to 2,493.18, 3,742.20 and 1,919.70 is: 2,881.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,493.18 : 3,742.20 = 1,919.70 : x
  2. Step 2: Convert to fraction form
    2,493.18/3,742.20 = 1,919.70/x
  3. Step 3: Cross multiply
    2,493.18x = 3,742.20 × 1,919.70
  4. Step 4: Simplify right side
    2,493.18x = 7,183,901.34
  5. Step 5: Solve for x
    x = 7,183,901.34/2,493.18
  6. Step 6: Final answer
    x = 2,881.42

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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.