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Finding the Fourth Proportional to 1,347.31, 2,021.74 and 567.25

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Solution

The fourth proportional to 1,347.31, 2,021.74 and 567.25 is: 851.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347.31 : 2,021.74 = 567.25 : x
  2. Step 2: Convert to fraction form
    1,347.31/2,021.74 = 567.25/x
  3. Step 3: Cross multiply
    1,347.31x = 2,021.74 × 567.25
  4. Step 4: Simplify right side
    1,347.31x = 1,146,832.02
  5. Step 5: Solve for x
    x = 1,146,832.02/1,347.31
  6. Step 6: Final answer
    x = 851.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.