Home / 3,183.45-4,774.61-1,428.53

Finding the Fourth Proportional to 3,183.45, 4,774.61 and 1,428.53

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Solution

The fourth proportional to 3,183.45, 4,774.61 and 1,428.53 is: 2,142.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,183.45 : 4,774.61 = 1,428.53 : x
  2. Step 2: Convert to fraction form
    3,183.45/4,774.61 = 1,428.53/x
  3. Step 3: Cross multiply
    3,183.45x = 4,774.61 × 1,428.53
  4. Step 4: Simplify right side
    3,183.45x = 6,820,642.61
  5. Step 5: Solve for x
    x = 6,820,642.61/3,183.45
  6. Step 6: Final answer
    x = 2,142.53

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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.