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Finding the Fourth Proportional to 1,945.94, 2,918.93 and 1,537.25

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Solution

The fourth proportional to 1,945.94, 2,918.93 and 1,537.25 is: 2,305.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945.94 : 2,918.93 = 1,537.25 : x
  2. Step 2: Convert to fraction form
    1,945.94/2,918.93 = 1,537.25/x
  3. Step 3: Cross multiply
    1,945.94x = 2,918.93 × 1,537.25
  4. Step 4: Simplify right side
    1,945.94x = 4,487,102.86
  5. Step 5: Solve for x
    x = 4,487,102.86/1,945.94
  6. Step 6: Final answer
    x = 2,305.89

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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.