Home / 1,551.21-2,327.15-511.44

Finding the Fourth Proportional to 1,551.21, 2,327.15 and 511.44

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Solution

The fourth proportional to 1,551.21, 2,327.15 and 511.44 is: 767.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,551.21 : 2,327.15 = 511.44 : x
  2. Step 2: Convert to fraction form
    1,551.21/2,327.15 = 511.44/x
  3. Step 3: Cross multiply
    1,551.21x = 2,327.15 × 511.44
  4. Step 4: Simplify right side
    1,551.21x = 1,190,197.60
  5. Step 5: Solve for x
    x = 1,190,197.60/1,551.21
  6. Step 6: Final answer
    x = 767.27

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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.