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Finding the Fourth Proportional to 2,777.01, 4,163.04 and 1,021.61

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Solution

The fourth proportional to 2,777.01, 4,163.04 and 1,021.61 is: 1,531.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,777.01 : 4,163.04 = 1,021.61 : x
  2. Step 2: Convert to fraction form
    2,777.01/4,163.04 = 1,021.61/x
  3. Step 3: Cross multiply
    2,777.01x = 4,163.04 × 1,021.61
  4. Step 4: Simplify right side
    2,777.01x = 4,252,982.48
  5. Step 5: Solve for x
    x = 4,252,982.48/2,777.01
  6. Step 6: Final answer
    x = 1,531.50

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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.