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Finding the Fourth Proportional to 1,763.69, 2,645.43 and 531.07

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Solution

The fourth proportional to 1,763.69, 2,645.43 and 531.07 is: 796.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,763.69 : 2,645.43 = 531.07 : x
  2. Step 2: Convert to fraction form
    1,763.69/2,645.43 = 531.07/x
  3. Step 3: Cross multiply
    1,763.69x = 2,645.43 × 531.07
  4. Step 4: Simplify right side
    1,763.69x = 1,404,908.51
  5. Step 5: Solve for x
    x = 1,404,908.51/1,763.69
  6. Step 6: Final answer
    x = 796.57

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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.