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Finding the Fourth Proportional to 2,371.43, 3,557.48 and 727.67

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Solution

The fourth proportional to 2,371.43, 3,557.48 and 727.67 is: 1,091.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,371.43 : 3,557.48 = 727.67 : x
  2. Step 2: Convert to fraction form
    2,371.43/3,557.48 = 727.67/x
  3. Step 3: Cross multiply
    2,371.43x = 3,557.48 × 727.67
  4. Step 4: Simplify right side
    2,371.43x = 2,588,650.05
  5. Step 5: Solve for x
    x = 2,588,650.05/2,371.43
  6. Step 6: Final answer
    x = 1,091.60

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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.