Home / 1,282.38-1,923.87-416.69

Finding the Fourth Proportional to 1,282.38, 1,923.87 and 416.69

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Solution

The fourth proportional to 1,282.38, 1,923.87 and 416.69 is: 625.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282.38 : 1,923.87 = 416.69 : x
  2. Step 2: Convert to fraction form
    1,282.38/1,923.87 = 416.69/x
  3. Step 3: Cross multiply
    1,282.38x = 1,923.87 × 416.69
  4. Step 4: Simplify right side
    1,282.38x = 801,655.31
  5. Step 5: Solve for x
    x = 801,655.31/1,282.38
  6. Step 6: Final answer
    x = 625.13

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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.