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Finding the Fourth Proportional to 2,040.38, 3,060.76 and 579.56

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Solution

The fourth proportional to 2,040.38, 3,060.76 and 579.56 is: 869.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,040.38 : 3,060.76 = 579.56 : x
  2. Step 2: Convert to fraction form
    2,040.38/3,060.76 = 579.56/x
  3. Step 3: Cross multiply
    2,040.38x = 3,060.76 × 579.56
  4. Step 4: Simplify right side
    2,040.38x = 1,773,894.07
  5. Step 5: Solve for x
    x = 1,773,894.07/2,040.38
  6. Step 6: Final answer
    x = 869.39

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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.