Home / 1,429.29-2,142.70-552.41

Finding the Fourth Proportional to 1,429.29, 2,142.70 and 552.41

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Solution

The fourth proportional to 1,429.29, 2,142.70 and 552.41 is: 828.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429.29 : 2,142.70 = 552.41 : x
  2. Step 2: Convert to fraction form
    1,429.29/2,142.70 = 552.41/x
  3. Step 3: Cross multiply
    1,429.29x = 2,142.70 × 552.41
  4. Step 4: Simplify right side
    1,429.29x = 1,183,643.59
  5. Step 5: Solve for x
    x = 1,183,643.59/1,429.29
  6. Step 6: Final answer
    x = 828.13

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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.