Home / 3,757.72-5,636.58-1,125.26

Finding the Fourth Proportional to 3,757.72, 5,636.58 and 1,125.26

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Solution

The fourth proportional to 3,757.72, 5,636.58 and 1,125.26 is: 1,687.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,757.72 : 5,636.58 = 1,125.26 : x
  2. Step 2: Convert to fraction form
    3,757.72/5,636.58 = 1,125.26/x
  3. Step 3: Cross multiply
    3,757.72x = 5,636.58 × 1,125.26
  4. Step 4: Simplify right side
    3,757.72x = 6,342,618.01
  5. Step 5: Solve for x
    x = 6,342,618.01/3,757.72
  6. Step 6: Final answer
    x = 1,687.89

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1.5x scale

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.