Home / 1,681.29-2,522.03-511.33

Finding the Fourth Proportional to 1,681.29, 2,522.03 and 511.33

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Solution

The fourth proportional to 1,681.29, 2,522.03 and 511.33 is: 767.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681.29 : 2,522.03 = 511.33 : x
  2. Step 2: Convert to fraction form
    1,681.29/2,522.03 = 511.33/x
  3. Step 3: Cross multiply
    1,681.29x = 2,522.03 × 511.33
  4. Step 4: Simplify right side
    1,681.29x = 1,289,589.60
  5. Step 5: Solve for x
    x = 1,289,589.60/1,681.29
  6. Step 6: Final answer
    x = 767.02

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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.