Home / 1,429.35-2,138.09-1,341.87

Finding the Fourth Proportional to 1,429.35, 2,138.09 and 1,341.87

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Solution

The fourth proportional to 1,429.35, 2,138.09 and 1,341.87 is: 2,007.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429.35 : 2,138.09 = 1,341.87 : x
  2. Step 2: Convert to fraction form
    1,429.35/2,138.09 = 1,341.87/x
  3. Step 3: Cross multiply
    1,429.35x = 2,138.09 × 1,341.87
  4. Step 4: Simplify right side
    1,429.35x = 2,869,032.12
  5. Step 5: Solve for x
    x = 2,869,032.12/1,429.35
  6. Step 6: Final answer
    x = 2,007.23

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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.