Home / 1,429.80-2,144.66-848.79

Finding the Fourth Proportional to 1,429.80, 2,144.66 and 848.79

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Solution

The fourth proportional to 1,429.80, 2,144.66 and 848.79 is: 1,273.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429.80 : 2,144.66 = 848.79 : x
  2. Step 2: Convert to fraction form
    1,429.80/2,144.66 = 848.79/x
  3. Step 3: Cross multiply
    1,429.80x = 2,144.66 × 848.79
  4. Step 4: Simplify right side
    1,429.80x = 1,820,361.72
  5. Step 5: Solve for x
    x = 1,820,361.72/1,429.80
  6. Step 6: Final answer
    x = 1,273.16

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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.