Home / 1,742.62-2,610.20-1,618.68

Finding the Fourth Proportional to 1,742.62, 2,610.20 and 1,618.68

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Solution

The fourth proportional to 1,742.62, 2,610.20 and 1,618.68 is: 2,424.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,742.62 : 2,610.20 = 1,618.68 : x
  2. Step 2: Convert to fraction form
    1,742.62/2,610.20 = 1,618.68/x
  3. Step 3: Cross multiply
    1,742.62x = 2,610.20 × 1,618.68
  4. Step 4: Simplify right side
    1,742.62x = 4,225,078.54
  5. Step 5: Solve for x
    x = 4,225,078.54/1,742.62
  6. Step 6: Final answer
    x = 2,424.56

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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.