Home / 1,517.90-2,090.49-1,167.98

Finding the Fourth Proportional to 1,517.90, 2,090.49 and 1,167.98

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Solution

The fourth proportional to 1,517.90, 2,090.49 and 1,167.98 is: 1,608.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517.90 : 2,090.49 = 1,167.98 : x
  2. Step 2: Convert to fraction form
    1,517.90/2,090.49 = 1,167.98/x
  3. Step 3: Cross multiply
    1,517.90x = 2,090.49 × 1,167.98
  4. Step 4: Simplify right side
    1,517.90x = 2,441,650.51
  5. Step 5: Solve for x
    x = 2,441,650.51/1,517.90
  6. Step 6: Final answer
    x = 1,608.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.