Home / 4,745.68-7,119.54-1,459

Finding the Fourth Proportional to 4,745.68, 7,119.54 and 1,459

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Solution

The fourth proportional to 4,745.68, 7,119.54 and 1,459 is: 2,188.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,745.68 : 7,119.54 = 1,459 : x
  2. Step 2: Convert to fraction form
    4,745.68/7,119.54 = 1,459/x
  3. Step 3: Cross multiply
    4,745.68x = 7,119.54 × 1,459
  4. Step 4: Simplify right side
    4,745.68x = 10,387,408.86
  5. Step 5: Solve for x
    x = 10,387,408.86/4,745.68
  6. Step 6: Final answer
    x = 2,188.81

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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.