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Finding the Fourth Proportional to 3,571.75, 4,929.02 and 2,174.77

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Solution

The fourth proportional to 3,571.75, 4,929.02 and 2,174.77 is: 3,001.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,571.75 : 4,929.02 = 2,174.77 : x
  2. Step 2: Convert to fraction form
    3,571.75/4,929.02 = 2,174.77/x
  3. Step 3: Cross multiply
    3,571.75x = 4,929.02 × 2,174.77
  4. Step 4: Simplify right side
    3,571.75x = 10,719,484.83
  5. Step 5: Solve for x
    x = 10,719,484.83/3,571.75
  6. Step 6: Final answer
    x = 3,001.19

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1.5x scale

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.