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Finding the Fourth Proportional to 1,693.74, 2,540.58 and 539.52

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Solution

The fourth proportional to 1,693.74, 2,540.58 and 539.52 is: 809.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,693.74 : 2,540.58 = 539.52 : x
  2. Step 2: Convert to fraction form
    1,693.74/2,540.58 = 539.52/x
  3. Step 3: Cross multiply
    1,693.74x = 2,540.58 × 539.52
  4. Step 4: Simplify right side
    1,693.74x = 1,370,693.72
  5. Step 5: Solve for x
    x = 1,370,693.72/1,693.74
  6. Step 6: Final answer
    x = 809.27

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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.