Home / 2,384.67-3,578.03-1,287.75

Finding the Fourth Proportional to 2,384.67, 3,578.03 and 1,287.75

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Solution

The fourth proportional to 2,384.67, 3,578.03 and 1,287.75 is: 1,932.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,384.67 : 3,578.03 = 1,287.75 : x
  2. Step 2: Convert to fraction form
    2,384.67/3,578.03 = 1,287.75/x
  3. Step 3: Cross multiply
    2,384.67x = 3,578.03 × 1,287.75
  4. Step 4: Simplify right side
    2,384.67x = 4,607,608.13
  5. Step 5: Solve for x
    x = 4,607,608.13/2,384.67
  6. Step 6: Final answer
    x = 1,932.18

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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.