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Finding the Fourth Proportional to 1,796.90, 2,695.28 and 564.28

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Solution

The fourth proportional to 1,796.90, 2,695.28 and 564.28 is: 846.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,796.90 : 2,695.28 = 564.28 : x
  2. Step 2: Convert to fraction form
    1,796.90/2,695.28 = 564.28/x
  3. Step 3: Cross multiply
    1,796.90x = 2,695.28 × 564.28
  4. Step 4: Simplify right side
    1,796.90x = 1,520,892.60
  5. Step 5: Solve for x
    x = 1,520,892.60/1,796.90
  6. Step 6: Final answer
    x = 846.40

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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.