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Finding the Fourth Proportional to 2,006.99, 3,010.78 and 620.45

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Solution

The fourth proportional to 2,006.99, 3,010.78 and 620.45 is: 930.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,006.99 : 3,010.78 = 620.45 : x
  2. Step 2: Convert to fraction form
    2,006.99/3,010.78 = 620.45/x
  3. Step 3: Cross multiply
    2,006.99x = 3,010.78 × 620.45
  4. Step 4: Simplify right side
    2,006.99x = 1,868,040.44
  5. Step 5: Solve for x
    x = 1,868,040.44/2,006.99
  6. Step 6: Final answer
    x = 930.77

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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.