Home / 2,018.16-3,027.43-785.67

Finding the Fourth Proportional to 2,018.16, 3,027.43 and 785.67

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Solution

The fourth proportional to 2,018.16, 3,027.43 and 785.67 is: 1,178.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,018.16 : 3,027.43 = 785.67 : x
  2. Step 2: Convert to fraction form
    2,018.16/3,027.43 = 785.67/x
  3. Step 3: Cross multiply
    2,018.16x = 3,027.43 × 785.67
  4. Step 4: Simplify right side
    2,018.16x = 2,378,560.93
  5. Step 5: Solve for x
    x = 2,378,560.93/2,018.16
  6. Step 6: Final answer
    x = 1,178.58

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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.