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Finding the Fourth Proportional to 1,346.75, 2,020.94 and 577.25

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Solution

The fourth proportional to 1,346.75, 2,020.94 and 577.25 is: 866.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346.75 : 2,020.94 = 577.25 : x
  2. Step 2: Convert to fraction form
    1,346.75/2,020.94 = 577.25/x
  3. Step 3: Cross multiply
    1,346.75x = 2,020.94 × 577.25
  4. Step 4: Simplify right side
    1,346.75x = 1,166,587.62
  5. Step 5: Solve for x
    x = 1,166,587.62/1,346.75
  6. Step 6: Final answer
    x = 866.22

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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.