Home / 1,634.03-2,451.25-538.78

Finding the Fourth Proportional to 1,634.03, 2,451.25 and 538.78

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Solution

The fourth proportional to 1,634.03, 2,451.25 and 538.78 is: 808.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,634.03 : 2,451.25 = 538.78 : x
  2. Step 2: Convert to fraction form
    1,634.03/2,451.25 = 538.78/x
  3. Step 3: Cross multiply
    1,634.03x = 2,451.25 × 538.78
  4. Step 4: Simplify right side
    1,634.03x = 1,320,669.52
  5. Step 5: Solve for x
    x = 1,320,669.52/1,634.03
  6. Step 6: Final answer
    x = 808.23

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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.