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Finding the Fourth Proportional to 6,620.51, 9,930.69 and 2,003.51

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Solution

The fourth proportional to 6,620.51, 9,930.69 and 2,003.51 is: 3,005.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.51 : 9,930.69 = 2,003.51 : x
  2. Step 2: Convert to fraction form
    6,620.51/9,930.69 = 2,003.51/x
  3. Step 3: Cross multiply
    6,620.51x = 9,930.69 × 2,003.51
  4. Step 4: Simplify right side
    6,620.51x = 19,896,187.07
  5. Step 5: Solve for x
    x = 19,896,187.07/6,620.51
  6. Step 6: Final answer
    x = 3,005.24

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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.