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Finding the Fourth Proportional to 1,551.75, 2,327.31 and 577.62

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Solution

The fourth proportional to 1,551.75, 2,327.31 and 577.62 is: 866.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,551.75 : 2,327.31 = 577.62 : x
  2. Step 2: Convert to fraction form
    1,551.75/2,327.31 = 577.62/x
  3. Step 3: Cross multiply
    1,551.75x = 2,327.31 × 577.62
  4. Step 4: Simplify right side
    1,551.75x = 1,344,300.80
  5. Step 5: Solve for x
    x = 1,344,300.80/1,551.75
  6. Step 6: Final answer
    x = 866.31

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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.