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Finding the Fourth Proportional to 1,445.54, 2,167.71 and 567.90

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Solution

The fourth proportional to 1,445.54, 2,167.71 and 567.90 is: 851.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445.54 : 2,167.71 = 567.90 : x
  2. Step 2: Convert to fraction form
    1,445.54/2,167.71 = 567.90/x
  3. Step 3: Cross multiply
    1,445.54x = 2,167.71 × 567.90
  4. Step 4: Simplify right side
    1,445.54x = 1,231,042.51
  5. Step 5: Solve for x
    x = 1,231,042.51/1,445.54
  6. Step 6: Final answer
    x = 851.62

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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.