Home / 1,429.02-2,143.26-441.69

Finding the Fourth Proportional to 1,429.02, 2,143.26 and 441.69

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Solution

The fourth proportional to 1,429.02, 2,143.26 and 441.69 is: 662.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429.02 : 2,143.26 = 441.69 : x
  2. Step 2: Convert to fraction form
    1,429.02/2,143.26 = 441.69/x
  3. Step 3: Cross multiply
    1,429.02x = 2,143.26 × 441.69
  4. Step 4: Simplify right side
    1,429.02x = 946,656.51
  5. Step 5: Solve for x
    x = 946,656.51/1,429.02
  6. Step 6: Final answer
    x = 662.45

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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.