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Finding the Fourth Proportional to 2,628.01, 3,941.73 and 872.92

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Solution

The fourth proportional to 2,628.01, 3,941.73 and 872.92 is: 1,309.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628.01 : 3,941.73 = 872.92 : x
  2. Step 2: Convert to fraction form
    2,628.01/3,941.73 = 872.92/x
  3. Step 3: Cross multiply
    2,628.01x = 3,941.73 × 872.92
  4. Step 4: Simplify right side
    2,628.01x = 3,440,814.95
  5. Step 5: Solve for x
    x = 3,440,814.95/2,628.01
  6. Step 6: Final answer
    x = 1,309.29

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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.