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Finding the Fourth Proportional to 1,593.68, 2,200.37 and 1,220.00

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Solution

The fourth proportional to 1,593.68, 2,200.37 and 1,220.00 is: 1,684.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,593.68 : 2,200.37 = 1,220.00 : x
  2. Step 2: Convert to fraction form
    1,593.68/2,200.37 = 1,220.00/x
  3. Step 3: Cross multiply
    1,593.68x = 2,200.37 × 1,220.00
  4. Step 4: Simplify right side
    1,593.68x = 2,684,434.30
  5. Step 5: Solve for x
    x = 2,684,434.30/1,593.68
  6. Step 6: Final answer
    x = 1,684.43

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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.