Home / 4,201.47-6,302.21-1,428.44

Finding the Fourth Proportional to 4,201.47, 6,302.21 and 1,428.44

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Solution

The fourth proportional to 4,201.47, 6,302.21 and 1,428.44 is: 2,142.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,201.47 : 6,302.21 = 1,428.44 : x
  2. Step 2: Convert to fraction form
    4,201.47/6,302.21 = 1,428.44/x
  3. Step 3: Cross multiply
    4,201.47x = 6,302.21 × 1,428.44
  4. Step 4: Simplify right side
    4,201.47x = 9,002,290.20
  5. Step 5: Solve for x
    x = 9,002,290.20/4,201.47
  6. Step 6: Final answer
    x = 2,142.65

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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.