Home / 3,018.20-4,530.54-1,787

Finding the Fourth Proportional to 3,018.20, 4,530.54 and 1,787

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Solution

The fourth proportional to 3,018.20, 4,530.54 and 1,787 is: 2,682.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.20 : 4,530.54 = 1,787 : x
  2. Step 2: Convert to fraction form
    3,018.20/4,530.54 = 1,787/x
  3. Step 3: Cross multiply
    3,018.20x = 4,530.54 × 1,787
  4. Step 4: Simplify right side
    3,018.20x = 8,096,074.98
  5. Step 5: Solve for x
    x = 8,096,074.98/3,018.20
  6. Step 6: Final answer
    x = 2,682.42

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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.