Home / 3,428.55-5,142.87-1,579.17

Finding the Fourth Proportional to 3,428.55, 5,142.87 and 1,579.17

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Solution

The fourth proportional to 3,428.55, 5,142.87 and 1,579.17 is: 2,368.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.55 : 5,142.87 = 1,579.17 : x
  2. Step 2: Convert to fraction form
    3,428.55/5,142.87 = 1,579.17/x
  3. Step 3: Cross multiply
    3,428.55x = 5,142.87 × 1,579.17
  4. Step 4: Simplify right side
    3,428.55x = 8,121,466.02
  5. Step 5: Solve for x
    x = 8,121,466.02/3,428.55
  6. Step 6: Final answer
    x = 2,368.78

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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.