Home / 1,429.25-2,143.33-491.93

Finding the Fourth Proportional to 1,429.25, 2,143.33 and 491.93

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Solution

The fourth proportional to 1,429.25, 2,143.33 and 491.93 is: 737.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429.25 : 2,143.33 = 491.93 : x
  2. Step 2: Convert to fraction form
    1,429.25/2,143.33 = 491.93/x
  3. Step 3: Cross multiply
    1,429.25x = 2,143.33 × 491.93
  4. Step 4: Simplify right side
    1,429.25x = 1,054,357.61
  5. Step 5: Solve for x
    x = 1,054,357.61/1,429.25
  6. Step 6: Final answer
    x = 737.70

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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.