Home / 2,402.28-3,603.42-1,429.20

Finding the Fourth Proportional to 2,402.28, 3,603.42 and 1,429.20

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Solution

The fourth proportional to 2,402.28, 3,603.42 and 1,429.20 is: 2,143.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,402.28 : 3,603.42 = 1,429.20 : x
  2. Step 2: Convert to fraction form
    2,402.28/3,603.42 = 1,429.20/x
  3. Step 3: Cross multiply
    2,402.28x = 3,603.42 × 1,429.20
  4. Step 4: Simplify right side
    2,402.28x = 5,150,007.86
  5. Step 5: Solve for x
    x = 5,150,007.86/2,402.28
  6. Step 6: Final answer
    x = 2,143.80

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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.