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Finding the Fourth Proportional to 2,040.62, 3,060.55 and 579.42

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Solution

The fourth proportional to 2,040.62, 3,060.55 and 579.42 is: 869.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,040.62 : 3,060.55 = 579.42 : x
  2. Step 2: Convert to fraction form
    2,040.62/3,060.55 = 579.42/x
  3. Step 3: Cross multiply
    2,040.62x = 3,060.55 × 579.42
  4. Step 4: Simplify right side
    2,040.62x = 1,773,343.88
  5. Step 5: Solve for x
    x = 1,773,343.88/2,040.62
  6. Step 6: Final answer
    x = 869.02

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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.