Home / 1,429.32-2,133.73-1,366.28

Finding the Fourth Proportional to 1,429.32, 2,133.73 and 1,366.28

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Solution

The fourth proportional to 1,429.32, 2,133.73 and 1,366.28 is: 2,039.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429.32 : 2,133.73 = 1,366.28 : x
  2. Step 2: Convert to fraction form
    1,429.32/2,133.73 = 1,366.28/x
  3. Step 3: Cross multiply
    1,429.32x = 2,133.73 × 1,366.28
  4. Step 4: Simplify right side
    1,429.32x = 2,915,272.62
  5. Step 5: Solve for x
    x = 2,915,272.62/1,429.32
  6. Step 6: Final answer
    x = 2,039.62

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.