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Finding the Fourth Proportional to 2,100.60, 3,150.93 and 540.56

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Solution

The fourth proportional to 2,100.60, 3,150.93 and 540.56 is: 810.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,100.60 : 3,150.93 = 540.56 : x
  2. Step 2: Convert to fraction form
    2,100.60/3,150.93 = 540.56/x
  3. Step 3: Cross multiply
    2,100.60x = 3,150.93 × 540.56
  4. Step 4: Simplify right side
    2,100.60x = 1,703,250.97
  5. Step 5: Solve for x
    x = 1,703,250.97/2,100.60
  6. Step 6: Final answer
    x = 810.84

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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.